Gaya APA

A, V, P., Keith, M. (1995). The Portland Cement Associations Guide To Concrete Homebuilding Systems . New York: Tata McGraw-Hill Publishing Company LTD.

Gaya MLA

A, Vanderwerf, Pieter., Keith, Munsell. "The Portland Cement Associations Guide To Concrete Homebuilding Systems". New York: Tata McGraw-Hill Publishing Company LTD, 1995. Text.