APA Style

Barbara, L, L. (1991). Singapore : a country study / Leitch Lepoer Barbara (2nd.ed.). Washington D.C.: Federal Research Division, Library of Congress..

MLA Style

Barbara, Leitch, Lepoer. "Singapore : a country study / Leitch Lepoer Barbara". 2nd.ed. Washington D.C.: Federal Research Division, Library of Congress., 1991. หนังสือ (Book).