APA

Taylor J. G., . (1975). Black Holes. New York: Avon Publishers.

Chicago

Taylor John G, . 1975. Black Holes. New York: Avon Publishers.

Harvard

Taylor J. G., . (1975). Black Holes. New York: Avon Publishers.

MLA

Taylor John G, . Black Holes. New York: Avon Publishers. 1975.