APA

Speakman J. C., . (1966). Molecules. New York: McGraw-Hill.

Chicago

Speakman J Clare, . 1966. Molecules. New York: McGraw-Hill.

Harvard

Speakman J. C., . (1966). Molecules. New York: McGraw-Hill.

MLA

Speakman J Clare, . Molecules. New York: McGraw-Hill. 1966.