The rural land classification program of Puerto Rico.

Xehetasun bibliografikoak
Erakunde egilea: Northwestern University, Evanston, Ill. Dept. of Geography
Formatua: Liburua
Hizkuntza:English
Argitaratua: Evanston, Ill. s.n. 1952.
Saila:Northwestern University studies in geography, no. 1
Gaiak: