APA

Berrill N. J., Karp G., . (1976). Development. New York: McGraw-Hill.

Chicago

Berrill N J, Karp Gerald, . 1976. Development. New York: McGraw-Hill.

Harvard

Berrill N. J., Karp G., . (1976). Development. New York: McGraw-Hill.

MLA

Berrill N J, Karp Gerald, . Development. New York: McGraw-Hill. 1976.