APA Style

Gunawan, Asim. (1981). A Sociolinguistic Study of Grammatical Variation in Indonesian . Georgetown: Georgetown University.

Chicago Style

Gunawan, Asim. A Sociolinguistic Study of Grammatical Variation in Indonesian. Georgetown: Georgetown University, 1981. Text.

MLA Style

Gunawan, Asim. A Sociolinguistic Study of Grammatical Variation in Indonesian. Georgetown: Georgetown University, 1981. Text.

Turabian Style

Gunawan, Asim. A Sociolinguistic Study of Grammatical Variation in Indonesian. Georgetown: Georgetown University, 1981. Print.