Sigurd Frosterus : : Art as an Attitude.

MLA

O'Neill, Itha, et al. Sigurd Frosterus : Art As an Attitude. Helsinki: Finnish Literature Society, 2015.

APA

O'Neill, I., Thiel, S., Aaltonen, S., & Sarje, K. (2015). Sigurd Frosterus : Art as an Attitude. Helsinki: Finnish Literature Society.

Chicago

O'Neill, Itha, Susanna Thiel, Susanna Aaltonen, and Kimmo Sarje. Sigurd Frosterus: Art As an Attitude. Helsinki: Finnish Literature Society, 2015.