Gaya APA

PENNIMAN, H, R., MUJAL-LEON, E. (1985). Spain At The Polls 1977, 1979, And 1982 : a study of national elections . New York: An American Enterprise Institute Book.

Gaya MLA

PENNIMAN, Howard, R., MUJAL-LEON, Eusebio. "Spain At The Polls 1977, 1979, And 1982 : a study of national elections". New York: An American Enterprise Institute Book, 1985. Text.