Cita APA (7a ed.)

Robertson, H. M. (1950). The principles of architectural composition. The architectural press.

Cita Chicago Style (17a ed.)

Robertson, Howard Morley. The Principles of Architectural Composition. London: The architectural press, 1950.

Cita MLA (9a ed.)

Robertson, Howard Morley. The Principles of Architectural Composition. The architectural press, 1950.