Callender, J. H. (1966). Time-saver standards: : a handbook of architectural design (4th ed.). New York: McGraw-Hill Book Company.
Παραπομπή Chicago StyleCallender, John Hancock. Time-saver Standards: : A Handbook of Architectural Design. 4th ed. New York: McGraw-Hill Book Company, 1966.
Παραπομπή MLACallender, John Hancock. Time-saver Standards: : A Handbook of Architectural Design. 4th ed. New York: McGraw-Hill Book Company, 1966.
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