Gaya APA

Wah, T., Calcote, L, R. (1970). Structural Analysis By Finite Difference Calculus . Texas: Van Nostrand Reihhold Company.

Gaya MLA

Wah, Thein., Calcote, Lee, R.. "Structural Analysis By Finite Difference Calculus". Texas: Van Nostrand Reihhold Company, 1970. Text.