Cita APA

McComb, H. E. n. 1., & McComb, H. E. n. 1. (1952). Magnetic observatory manual. Washington: U.S. Government Printing Office.

Citación estilo Chicago

McComb, Harold Edgar n. 1886, y Harold Edgar n. 1886 McComb. Magnetic Observatory Manual. Washington: U.S. Government Printing Office, 1952.

Cita MLA

McComb, Harold Edgar n. 1886, y Harold Edgar n. 1886 McComb. Magnetic Observatory Manual. Washington: U.S. Government Printing Office, 1952.