APA (7th ed.) Citation

Tietz, H. M. (1952). The Lepidoptera of Pennsylvania: A manual. Pennsylvania State College, School of Agriculture, Agricultural Experiment Station.

Chicago Style (17th ed.) Citation

Tietz, Harrison Morton. The Lepidoptera of Pennsylvania: A Manual. State College, Pa.: Pennsylvania State College, School of Agriculture, Agricultural Experiment Station, 1952.

MLA (9th ed.) Citation

Tietz, Harrison Morton. The Lepidoptera of Pennsylvania: A Manual. Pennsylvania State College, School of Agriculture, Agricultural Experiment Station, 1952.