APA aipamena

HALLAN, J. S., & NIRSON, J. W. (1986). A practicsl course of english grammar 1. Putera "Sidhi-Bhakti".

Chicago Style aipamena

HALLAN, Jack S., and John W. NIRSON. A Practicsl Course of English Grammar 1. Bandung: Putera "Sidhi-Bhakti", 1986.

MLA aipamena

HALLAN, Jack S., and John W. NIRSON. A Practicsl Course of English Grammar 1. Putera "Sidhi-Bhakti", 1986.