APA-Zitierstil (7. Ausg.)

Gregg, W. R. (1918). Free-air data at Drexel, Nebr., and Ellendale, N. Dak., Aerological Stations: By Willis Ray Gregg. Government Printing Office.

Chicago-Zitierstil (17. Ausg.)

Gregg, Willis Ray. Free-air Data at Drexel, Nebr., and Ellendale, N. Dak., Aerological Stations: By Willis Ray Gregg. Washington: Government Printing Office, 1918.

MLA-Zitierstil (9. Ausg.)

Gregg, Willis Ray. Free-air Data at Drexel, Nebr., and Ellendale, N. Dak., Aerological Stations: By Willis Ray Gregg. Government Printing Office, 1918.