@Book{OL696030M,
    title: {Ultimate Japanese, advanced},
    author: {Suguru Akutsu},
    publisher: {Living Language},
    year: {1998},
    place: {New York},
}

@Book{OL22614507M,
    title: {Ultimate Japanese},
    author: {Hiroko Storm},
    publisher: {Living Language, A Random House Co.},
    year: {2004},
    place: {New York},
}

@Book{OL9037148M,
    title: {Japanese for Busy People I},
    author: {AJALT},
    publisher: {Kodansha International},
    year: {1997},
}

@Book{OL5680802M,
    title: {Read Japanese today.},
    author: {Len Walsh},
    publisher: {C. E. Tuttle Co.},
    year: {1969},
    place: {Rutland, Vt},
}

@Book{OL24212564M,
    title: {Linguaphone nihongo kosu.},
    publisher: {Linguaphone Inst.},
    year: {1967},
    place: {London},
}

@Work{OL2712037W,
    title: {Japanese in plain English},
    author: {Boye De Mente},
    first_publish_year: {1987}
}

@Work{OL8628286W,
    title: {Talk Japanese},
    author: {Yukiko Isono},
    first_publish_year: {1998}
}

@Author{OL2903468A,
    name: {Yukiko Isono},
}