Cita APA (7a ed.)
Paddock, J. Populations problem: In search of a solution.
Cita Chicago Style (17a ed.)
Paddock, John. Populations Problem: In Search of a Solution.
Cita MLA (9a ed.)
Paddock, John. Populations Problem: In Search of a Solution.
警告：這些引文格式不一定是100％准確.