APA-Zitierstil (7. Ausg.)

Gregg, W. R. (1918). Free-air temperatures during the cold winter of 1917 - 18: By Willis Ray Gregg. Government Printing Office.

Chicago-Zitierstil (17. Ausg.)

Gregg, Willis Ray. Free-air Temperatures During the Cold Winter of 1917 - 18: By Willis Ray Gregg. Washington: Government Printing Office, 1918.

MLA-Zitierstil (9. Ausg.)

Gregg, Willis Ray. Free-air Temperatures During the Cold Winter of 1917 - 18: By Willis Ray Gregg. Government Printing Office, 1918.