APA (7th ed.) Citation

Schofield, C. H., & Blake, G. H. (1994). World boundaries series (1. publ.). Routledge.

Chicago Style (17th ed.) Citation

Schofield, Clive H., and Gerald Henry Blake. World Boundaries Series. 1. publ. London ; New York: Routledge, 1994.

MLA (9th ed.) Citation

Schofield, Clive H., and Gerald Henry Blake. World Boundaries Series. 1. publ. Routledge, 1994.