APA (7th ed.) Citation

Drozdek, A. (2000). Gutberlet's principle.

Chicago Style (17th ed.) Citation

Drozdek, Adam. Gutberlet's Principle. 2000.

MLA (9th ed.) Citation

Drozdek, Adam. Gutberlet's Principle. 2000.

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