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.
Chicago-referens (17:e uppl.)United States. Library of Congress, Helen Savage, Kathleen D. Droste, och 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.
MLA-referens (9:e uppl.)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.