APA (7th ed.) Citation

Ritchie Deborah, Eadie Douglas, Creely Kaen S, Hilton Shona, Semple Sean, Petticrew Mark, . . . Hurley Fintan. (2007). Covert observation in practice: Lessons from the evaluation of the prohibition of smoking in public places in Scotland. BMC.

Chicago Style (17th ed.) Citation

Ritchie Deborah, Eadie Douglas, Creely Kaen S, Hilton Shona, Semple Sean, Petticrew Mark, Ferrell Catherine, Christopher Yvette, and Hurley Fintan. Covert Observation in Practice: Lessons from the Evaluation of the Prohibition of Smoking in Public Places in Scotland. BMC, 2007.

MLA (9th ed.) Citation

Ritchie Deborah, et al. Covert Observation in Practice: Lessons from the Evaluation of the Prohibition of Smoking in Public Places in Scotland. BMC, 2007.

Warning: These citations may not always be 100% accurate.