Chardon, Roland Emanuel Paul. Geographic aspects of plantation agriculture in Yucatán - Washington : National Academic of Sciences, 1961 - 200 p. : ilus. - N.A.S. Pub. ; 876 . - N.A.S. Pub. ; 876 . LCCN: 70461 Subjects--Topical Terms: Henequén--Yucatán. Dewey Class. No.: 633.53 / C43