Cita APA (7th ed.)

Spencer, J. E. (1954). Land and people in the Philippines: Geographic problems in rural economy. University of California Press.

Cita Chicago (17th ed.)

Spencer, Joseph Earle. Land and People in the Philippines: Geographic Problems in Rural Economy. Berkeley: University of California Press, 1954.

Cita MLA (9th ed.)

Spencer, Joseph Earle. Land and People in the Philippines: Geographic Problems in Rural Economy. University of California Press, 1954.