Longwood, F. R. (1961). Puerto rican woods: Their machining, seasoning and related characteristics. U.S. Government Printing.
Style de citation Chicago (17e éd.)Longwood, Franklin R. Puerto Rican Woods: Their Machining, Seasoning and Related Characteristics. Washington, D.C.: U.S. Government Printing, 1961.
Style de citation MLA (9e éd.)Longwood, Franklin R. Puerto Rican Woods: Their Machining, Seasoning and Related Characteristics. U.S. Government Printing, 1961.
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