APA aipamena

Thurber, W. A., & Kilburn, R. E. (1967). Exploring earth science. Allyn r Bacon.

Chicago Style aipamena

Thurber, Walter A., and Robert E. Kilburn. Exploring Earth Science. Allyn r Bacon, 1967.

MLA aipamena

Thurber, Walter A., and Robert E. Kilburn. Exploring Earth Science. Allyn r Bacon, 1967.

Kontuz: berrikusi erreferentzia hauek erabili aurretik.