APA (7th ed.) Citation

Underhill, S. (1999). Twins: Steven Underhill. Gmünder.

Chicago Style (17th ed.) Citation

Underhill, Steven. Twins: Steven Underhill. Berlin: Gmünder, 1999.

MLA (8th ed.) Citation

Underhill, Steven. Twins: Steven Underhill. Gmünder, 1999.

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