Northwestern University, Evanston, Ill. Dept. of Geography. (1952). The rural land classification program of Puerto Rico. s.n.
Citación estilo ChicagoNorthwestern University, Evanston, Ill. Dept. of Geography. The Rural Land Classification Program of Puerto Rico. Evanston, Ill: s.n, 1952.
Cita MLANorthwestern University, Evanston, Ill. Dept. of Geography. The Rural Land Classification Program of Puerto Rico. s.n, 1952.
Warning: These citations may not always be 100% accurate.