APA (7th ed.) Citation

Erni, H., & Burckhardt, C. J. (1970). Hans Erni: Carl J. Burckhardt. Rencontre.

Chicago Style (17th ed.) Citation

Erni, Hans, and Carl Jacob Burckhardt. Hans Erni: Carl J. Burckhardt. Genf: Rencontre, 1970.

MLA (8th ed.) Citation

Erni, Hans, and Carl Jacob Burckhardt. Hans Erni: Carl J. Burckhardt. Rencontre, 1970.

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