TY - BOOK ED - Seminar on Plantation Systems of the New World ED - Unión Panamericana ED - Columbia University. TI - Seminar on Plantation Systems of the New World: papers and discussion summaries of the Seminar held in San Juan, Puerto Rico T2 - Social science monographs AV - HD1326 S4 1957 PY - 1959/// CY - Washington PB - Pan American Union KW - Jardinería ER -