Cita APA

Yach, D., McIntyre, D., & Saloojee, Y. (1992). Smoking in South Africa: The health and economic impact. BMJ Group.

Chicago Style Citation

Yach, D., D. McIntyre, i Y. Saloojee. Smoking in South Africa: The Health and Economic Impact. BMJ Group, 1992.

Cita MLA

Yach, D., D. McIntyre, i Y. Saloojee. Smoking in South Africa: The Health and Economic Impact. BMJ Group, 1992.