APA (7th ed.) Citation

Lupfer, G., Sigel, P., & Gropius, W. (2017). Walter Gropius. 1883-1969 : the promoter of a new form / Gilbert Lupfer, Paul Sigel: The promoter of a new form ([New edition].). Taschen.

Chicago Style (17th ed.) Citation

Lupfer, Gilbert, Paul Sigel, and Walter Gropius. Walter Gropius. 1883-1969 : The Promoter of a New Form / Gilbert Lupfer, Paul Sigel: The Promoter of a New Form. [New edition]. Köln: Taschen, 2017.

MLA (9th ed.) Citation

Lupfer, Gilbert, et al. Walter Gropius. 1883-1969 : The Promoter of a New Form / Gilbert Lupfer, Paul Sigel: The Promoter of a New Form. [New edition]. Taschen, 2017.

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