APA (7th ed.) Citation

Zietz, I., & Kirby, J. R., Jr. (1968). Transcontinental geophysical survey (35⁰-39⁰N): Magnetic map from 100⁰ to 112⁰ W longitude. U.S. Geological Survey.

Chicago Style (17th ed.) Citation

Zietz, Isidore, and John R. Kirby, Jr. Transcontinental Geophysical Survey (35⁰-39⁰N): Magnetic Map from 100⁰ to 112⁰ W Longitude. Washington D.C.: U.S. Geological Survey, 1968.

MLA (9th ed.) Citation

Zietz, Isidore, and John R. Kirby, Jr. Transcontinental Geophysical Survey (35⁰-39⁰N): Magnetic Map from 100⁰ to 112⁰ W Longitude. U.S. Geological Survey, 1968.