APA

Libby J. R., . (1977). Modern prestressed concrete : design principles and construction methods. New York: Van Nostrand Reinhold Company.

Chicago

Libby James R, . 1977. Modern prestressed concrete : design principles and construction methods. New York: Van Nostrand Reinhold Company.

Harvard

Libby J. R., . (1977). Modern prestressed concrete : design principles and construction methods. New York: Van Nostrand Reinhold Company.

MLA

Libby James R, . Modern prestressed concrete : design principles and construction methods. New York: Van Nostrand Reinhold Company. 1977.