APA Format
Cohen, Louis; Manion, Lawrence; Morrison, Keith . (). Research... : Approaches to qualitative data analysis, ( ket. lihat bab. 28 ) ( halaman 537-546 ). : London : Routledge, 2011
MLA Format
Cohen, Louis; Manion, Lawrence; Morrison, Keith . Research... : Approaches to qualitative data analysis, ( ket. lihat bab. 28 ) ( halaman 537-546 ). : London : Routledge, 2011,
Australian/Harvard Format
Cohen, Louis; Manion, Lawrence; Morrison, Keith . . Research... : Approaches to qualitative data analysis, ( ket. lihat bab. 28 ) ( halaman 537-546 ). London : Routledge, 2011, 
Warning: These citations may not always be 100% accurate.