APA (7th ed.) Citation

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

Chicago Style (17th ed.) Citation

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

MLA (9th ed.) Citation

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

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