APA Format
Cottrell, Randall R. . (). Principles and... : Development of a unified code of ethics for the health education profession, ( ket. lihat bab. app. ) ( halaman 327-334 ). : London : Pearson, 2014
MLA Format
Cottrell, Randall R. . Principles and... : Development of a unified code of ethics for the health education profession, ( ket. lihat bab. app. ) ( halaman 327-334 ). : London : Pearson, 2014,
Australian/Harvard Format
Cottrell, Randall R. . . Principles and... : Development of a unified code of ethics for the health education profession, ( ket. lihat bab. app. ) ( halaman 327-334 ). London : Pearson, 2014, 
Warning: These citations may not always be 100% accurate.