APA (7th ed.) Citation

Tress, A., & Yves Navarre. (1980). Facing up: Arthur Tress. [Preface: Yves Navarre]. Letu [u.a.].

Chicago Style (17th ed.) Citation

Tress, Arthur, and Yves Navarre. Facing Up: Arthur Tress. [Preface: Yves Navarre]. Genf [u.a.]: Letu [u.a.], 1980.

MLA (8th ed.) Citation

Tress, Arthur, and Yves Navarre. Facing Up: Arthur Tress. [Preface: Yves Navarre]. Letu [u.a.], 1980.