APA (7th ed.) Citation

Gaskell, T. F. (1967). The earth's mantle. Acad. Press.

Chicago Style (17th ed.) Citation

Gaskell, Thomas F. The Earth's Mantle. London [u.a.]: Acad. Press, 1967.

MLA (9th ed.) Citation

Gaskell, Thomas F. The Earth's Mantle. Acad. Press, 1967.