It looks like you're offline.
Donate
Change Website Language
Open Library logo
additional options menu
Last edited anonymously
August 19, 2008 | History
Edit

Paul O. Ritcher

We need a photo of Paul O. Ritcher

5 works Add another?

Sorting by Sorted by: Most Editions | First Published | Most Recent | Top Rated | Reading Log | Random

Showing all works by author. Would you like to see only ebooks?

  • Cover of: Biological control of insects and weeds in Oregon

    First published in 1966 1 edition in 1 language
    Not in Library

    My Reading Lists:

    Create a new list

    Check-In

    ×Close
    Add an optional check-in date. Check-in dates are used to track yearly reading goals.
    Today
  • Cover of: Biology of Scarabaeidae

    First published in 1958 1 edition in 1 language
    Not in Library

    My Reading Lists:

    Create a new list

    Check-In

    ×Close
    Add an optional check-in date. Check-in dates are used to track yearly reading goals.
    Today
  • Cover of: Keys for identifying larvae of Scarabaeoidea to the family and subfamily (Coleoptera)

    First published in 1967 1 edition in 1 language
    Not in Library

    My Reading Lists:

    Create a new list

    Check-In

    ×Close
    Add an optional check-in date. Check-in dates are used to track yearly reading goals.
    Today
  • Cover of: White grubs and their allies: a study of North American Scarabaeoid larvae

    First published in 1966 1 edition in 1 language — 1 previewable
    Borrow Listen

    My Reading Lists:

    Create a new list

    Check-In

    ×Close
    Add an optional check-in date. Check-in dates are used to track yearly reading goals.
    Today
  • Cover of: Oil-nicotine, a promising new insecticide

    First published in 1937 1 edition in 1 language — 1 previewable
    Read Listen

    My Reading Lists:

    Create a new list

    Check-In

    ×Close
    Add an optional check-in date. Check-in dates are used to track yearly reading goals.
    Today
We need a photo of Paul O. Ritcher

Subjects
Scarabaeidae, Insects, Larvae, Biological control, Insecticides, Insects pests, Oil as pesticide, Scarabaeoidea, Weeds
Places
Oregon

Lists

Add to List

My Reading Lists:

Create a new list

ID Numbers

  • OLID: OL2229387A

Links (outside Open Library)

No links yet. Add one?

History

Download catalog record: RDF / JSON
August 19, 2008 Edited by an anonymous user fix author name
April 1, 2008 Created by an anonymous user initial import