APA (7th ed.) Citation

Osborn, H., & Knull, D. J. (1939). Meadow and pasture insects. The Educators' press.

Chicago Style (17th ed.) Citation

Osborn, Herbert, and Dorothy J. Knull. Meadow and Pasture Insects. Columbus, O.: The Educators' press, 1939.

MLA (9th ed.) Citation

Osborn, Herbert, and Dorothy J. Knull. Meadow and Pasture Insects. The Educators' press, 1939.