Cita APA (7a ed.)

Cusens, A., & Santathadaporn, S. (1966). Design charts for helical stairs with fixed supports ([1st published].). Concrete Publications.

Cita Chicago Style (17a ed.)

Cusens, A.R, y Sakda Santathadaporn. Design Charts for Helical Stairs with Fixed Supports. [1st published]. London: Concrete Publications, 1966.

Cita MLA (9a ed.)

Cusens, A.R, y Sakda Santathadaporn. Design Charts for Helical Stairs with Fixed Supports. [1st published]. Concrete Publications, 1966.