APA
Sayre A. P., . (1996). Coral reef. New York: Twenty-First Century.
Chicago
Sayre April Pulley, . 1996. Coral reef. New York: Twenty-First Century.
Harvard
Sayre A. P., . (1996). Coral reef. New York: Twenty-First Century.
MLA
Sayre April Pulley, . Coral reef. New York: Twenty-First Century. 1996.