APA (7th ed.) Citation

Callen, A. (1982). Techniques of the impressionists. Orbis.

Chicago Style (17th ed.) Citation

Callen, Anthea. Techniques of the Impressionists. London: Orbis, 1982.

MLA (8th ed.) Citation

Callen, Anthea. Techniques of the Impressionists. Orbis, 1982.

Warning: These citations may not always be 100% accurate.