APA استشهاد

Gutenberg, B., & Adams, L. H. (1951). Internal constitution of the earth (2nd ed.). Dover Publication.

استشهاد بنمط شيكاغو

Gutenberg, Beno, و Leason Heberling Adams. Internal Constitution of the Earth. 2nd ed. New York: Dover Publication, 1951.

MLA استشهاد

Gutenberg, Beno, و Leason Heberling Adams. Internal Constitution of the Earth. 2nd ed. Dover Publication, 1951.