456266 Perkins, P. H. (1972). Building a concrete block swimming pool. London : Cement and Concrete Association.
Chicago Style (17th ed.) Citation456266 Perkins, Philip Harold. Building a Concrete Block Swimming Pool. London : Cement and Concrete Association, 1972.
MLA (9th ed.) Citation456266 Perkins, Philip Harold. Building a Concrete Block Swimming Pool. London : Cement and Concrete Association, 1972.
Warning: These citations may not always be 100% accurate.