APA Style

Valenzuela, J, J, A, A. (1994). The Failure of presidential democray (0-8018-4640-4). United States of America: John Hopkins Univerity Press.

MLA Style

Valenzuela, Juan, J.Linz, And, Arturo. "The Failure of presidential democray". 0-8018-4640-4 United States of America: John Hopkins Univerity Press, 1994. Text.