APA (7th ed.) Citation

Smith, P. J. (1986). Hutchinson encyclopedia of the earth. Hutchinson.

Chicago Style (17th ed.) Citation

Smith, Peter J. Hutchinson Encyclopedia of the Earth. London: Hutchinson, 1986.

MLA (9th ed.) Citation

Smith, Peter J. Hutchinson Encyclopedia of the Earth. Hutchinson, 1986.

Warning: These citations may not always be 100% accurate.