Gaya APA

HALLAN, J, S., NIRRON, J, W. (1986). (A) Practical course of english grammar, book 1 (Book 1). Bandung: C.V. Putera Sidhi Bhakti.

Gaya MLA

HALLAN, Jack, S.., NIRRON, John, W.. "(A) Practical course of english grammar, book 1". Book 1 Bandung: C.V. Putera Sidhi Bhakti, 1986. Text.