APA (7th ed.) Citation

Du Plessis, N. (1970). An introduction to potential theory (1. publ.). Hafner.

Chicago Style (17th ed.) Citation

Du Plessis, Nicolaas. An Introduction to Potential Theory. 1. publ. Darien, Conn: Hafner, 1970.

MLA (9th ed.) Citation

Du Plessis, Nicolaas. An Introduction to Potential Theory. 1. publ. Hafner, 1970.

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