APA Format
Johnson, Paul A. . (). The AUPHA ... : Housekeeping and environmental services, ( Ket. lihat bab. 24 ) ( halaman 487-500 ). : Gaithersburg, Maryland : An Aspen Publ; 1994
MLA Format
Johnson, Paul A. . The AUPHA ... : Housekeeping and environmental services, ( Ket. lihat bab. 24 ) ( halaman 487-500 ). : Gaithersburg, Maryland : An Aspen Publ; 1994,
Australian/Harvard Format
Johnson, Paul A. . . The AUPHA ... : Housekeeping and environmental services, ( Ket. lihat bab. 24 ) ( halaman 487-500 ). Gaithersburg, Maryland : An Aspen Publ; 1994, 
Warning: These citations may not always be 100% accurate.