APA (7th ed.) Citation

Assael, M., Gabbay, F., & Roseman, J. (1975). Spontaneous painting in group.

Chicago Style (17th ed.) Citation

Assael, Marcel, Flora Gabbay, and Jael Roseman. Spontaneous Painting in Group. 1975.

MLA (9th ed.) Citation

Assael, Marcel, et al. Spontaneous Painting in Group. 1975.