APA-ийн эшлэл(7 дахь хэвлэлт)

WALKER, E., & ELSWIRTH, S. (1990). Grammar practice for intermediate students. Binarupa Aksara.

Чикаго-гийн эшлэл (17 дахь хэвлэлт)

WALKER, Elaine, ба Steve ELSWIRTH. Grammar Practice for Intermediate Students. Jakarta: Binarupa Aksara, 1990.

MLA -ийн эшлэл (9 дэх хэвлэлт)

WALKER, Elaine, ба Steve ELSWIRTH. Grammar Practice for Intermediate Students. Binarupa Aksara, 1990.