APA (7th ed.) Citation

Spencer, M. (1986). Contemporary economics (6th. ed.). Worth.

Chicago Style (17th ed.) Citation

Spencer, Milton. Contemporary Economics. 6th. ed. New York: Worth, 1986.

MLA (9th ed.) Citation

Spencer, Milton. Contemporary Economics. 6th. ed. Worth, 1986.

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