Longwood, F. R. (1961). Puerto rican woods: Their machining, seasoning and related characteristics. U.S. Government Printing.
Chicago Style (17. basım) AtıfLongwood, Franklin R. Puerto Rican Woods: Their Machining, Seasoning and Related Characteristics. Washington, D.C.: U.S. Government Printing, 1961.
MLA (9th ed.) AtıfLongwood, Franklin R. Puerto Rican Woods: Their Machining, Seasoning and Related Characteristics. U.S. Government Printing, 1961.
Uyarı: Bu alıntı herzaman %100 doğru olmayabilir..