Cita APA

(2012). NFPA 252: Standard methods of fire tests of door assemblies (2012 edition.). National Fire Protection Association.

Citación estilo Chicago

NFPA 252: Standard Methods of Fire Tests of Door Assemblies. 2012 edition. Quincy, Massachusetts: National Fire Protection Association, 2012.

Cita MLA

NFPA 252: Standard Methods of Fire Tests of Door Assemblies. 2012 edition. National Fire Protection Association, 2012.

Warning: These citations may not always be 100% accurate.