APA Format
Cottrell, Randall R. . (). Principles and... : A background for the profession, ( ket. lihat bab. 1 ) ( halaman 1-38 ). : London : Pearson, 2014
MLA Format
Cottrell, Randall R. . Principles and... : A background for the profession, ( ket. lihat bab. 1 ) ( halaman 1-38 ). : London : Pearson, 2014,
Australian/Harvard Format
Cottrell, Randall R. . . Principles and... : A background for the profession, ( ket. lihat bab. 1 ) ( halaman 1-38 ). London : Pearson, 2014, 
Warning: These citations may not always be 100% accurate.