Citazione Stile APA (7a Edizione)

Heiskanen, W. (1958). The earth and its gravity field. McGraw-Hill.

Citazione stile Chigago Style (17a edizione)

Heiskanen, W.A. The Earth and Its Gravity Field. New York: McGraw-Hill, 1958.

Citatione MLA (9a ed.)

Heiskanen, W.A. The Earth and Its Gravity Field. McGraw-Hill, 1958.