United States. Library of Congress, Savage, H., Droste, K. D., & Runshock, R. (1987). Library of Congress classification schedules combined with additions and changes through 1986 Class P : Philology and literature: Subclass PJ-PM : Languages and literatures of Asia, Africa, Oceania, America, Mixed languages, Artificial languages. Gale Research Inc.
Trích dẫn kiểu Chicago (xuất bản lần thứ 7)United States. Library of Congress, Helen Savage, Kathleen D. Droste, và Rita Runshock. Library of Congress Classification Schedules Combined with Additions and Changes Through 1986 Class P : Philology and Literature: Subclass PJ-PM : Languages and Literatures of Asia, Africa, Oceania, America, Mixed Languages, Artificial Languages. Detroit: Gale Research Inc, 1987.
Trích dẫn kiểu MLA (xuất bản lần thứ 9)United States. Library of Congress, et al. Library of Congress Classification Schedules Combined with Additions and Changes Through 1986 Class P : Philology and Literature: Subclass PJ-PM : Languages and Literatures of Asia, Africa, Oceania, America, Mixed Languages, Artificial Languages. Gale Research Inc, 1987.