APA

Ritchie B. W., Burns P. & Palmer C. A. (2005). Tourism research methods: integrating theory with practice. Wallingford: CABI Publishing.

Chicago

Ritchie Brent W, Burns Peter and Palmer Catherine A. 2005. Tourism research methods: integrating theory with practice. Wallingford: CABI Publishing.

Harvard

Ritchie B. W., Burns P. and Palmer C. A. (2005). Tourism research methods: integrating theory with practice. Wallingford: CABI Publishing.

MLA

Ritchie Brent W, Burns Peter and Palmer Catherine A. Tourism research methods: integrating theory with practice. Wallingford: CABI Publishing. 2005.