APA (7th ed.) Citation

Gerson, H., Os, H. v., & Schwartz, G. (1969). Sienese paintings in Holland. Wolters-Noordhoff.

Chicago Style (17th ed.) Citation

Gerson, Horst, Henk van Os, and Gary Schwartz. Sienese Paintings in Holland. Groningen: Wolters-Noordhoff, 1969.

MLA (9th ed.) Citation

Gerson, Horst, et al. Sienese Paintings in Holland. Wolters-Noordhoff, 1969.