Gaya APA

E., R, L, P, P. (1976). Formwork for Concrete Structures (2). New York: McGRAW-HILL BOOK COMPANY N.

Gaya MLA

E., R., L., Peurifoy,, P.. "Formwork for Concrete Structures". 2 New York: McGRAW-HILL BOOK COMPANY N, 1976. Text.