Cita APA (7th ed.)
Paddock, J. Populations problem: In search of a solution.
Cita Chicago (17th ed.)
Paddock, John. Populations Problem: In Search of a Solution.
Cita MLA (9th ed.)
Paddock, John. Populations Problem: In Search of a Solution.
Atenció: Aquestes cites poden no estar 100% correctes.