APA (7th ed.) Citation

Hosmer, G. L., & Robbins, J. M. (1948). Practical astronomy: A textbook for engineering schools and a manual of field methods (4th ed., rev. and rewritten.). J. Wiley.

Chicago Style (17th ed.) Citation

Hosmer, George Leonard, and James Melvin Robbins. Practical Astronomy: A Textbook for Engineering Schools and a Manual of Field Methods. 4th ed., rev. and rewritten. New York,: J. Wiley, 1948.

MLA (8th ed.) Citation

Hosmer, George Leonard, and James Melvin Robbins. Practical Astronomy: A Textbook for Engineering Schools and a Manual of Field Methods. 4th ed., rev. and rewritten. J. Wiley, 1948.