APA (7th ed.) Citation

Hegner, R. W. (1915). Practical zoology. The Macmillan company.

Chicago Style (17th ed.) Citation

Hegner, Robert William. Practical Zoology. New York: The Macmillan company, 1915.

MLA (9th ed.) Citation

Hegner, Robert William. Practical Zoology. The Macmillan company, 1915.

Warning: These citations may not always be 100% accurate.