Gaya APA
Lele, U, J., Stone, S, W. (1989).
Population pressure, the environment and agricultural intensification : variations on the Boserup hypothesis / Uma J. Lele, Steven W. Stone .
:
World Bank.
Gaya MLA
Lele, Uma, J.., Stone, Steven, W..
"Population pressure, the environment and agricultural intensification : variations on the Boserup hypothesis / Uma J. Lele, Steven W. Stone".
:
World Bank,
1989.
Textbook.