Cita APA (7th ed.)

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

Cita Chicago (17th ed.)

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

Cita MLA (9th ed.)

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