Gaya APA

Gallup, G, J., Lindsay, D, M. (1999). Surveying the Religious Landscape : trends in U.S. beliefs (1). : Morehouse Publishing.

Gaya MLA

Gallup, George,, Jr.., Lindsay, D., Michael. "Surveying the Religious Landscape : trends in U.S. beliefs". 1 : Morehouse Publishing, 1999. Non Fiction.