Helmer Osslund - Norrlands Malare (Exhibition Stockholm, Nationalmuseum, 1971).

MLA

Reuterswärd, Patrick. Helmer Osslund - Norrlands Malare (exhibition Stockholm, Nationalmuseum, 1971). Stockholm: Nationalmuseum (Stockholm), 1971.

APA

Reuterswärd, P. (1971). Helmer Osslund - Norrlands Malare (Exhibition Stockholm, Nationalmuseum, 1971). Stockholm: Nationalmuseum (Stockholm).

Chicago

Reuterswärd, Patrick Helmer Osslund - Norrlands Malare (exhibition Stockholm, Nationalmuseum, 1971). Stockholm: Nationalmuseum (Stockholm), 1971.