Building Plan Holding Corporation (New York). (1921). Home builder's plan book . [s.n.].
Cita Chicago Style (17a ed.)Building Plan Holding Corporation (New York). Home Builder's Plan Book . New York: [s.n.], 1921.
Cita MLA (9a ed.)Building Plan Holding Corporation (New York). Home Builder's Plan Book . [s.n.], 1921.
Precaución: Estas citas no son 100% exactas.