Beyer, O. (1955). The origin and history of the Philippine rice terraces. Quezon City: Published by the National Research Council of the Philippines, University of The Philippines.Beyer, O. (1955). The origin and history of the Philippine rice terraces. Quezon City: Published by the National Research Council of the Philippines, University of The Philippines.Beyer, O. (1955). The origin and history of the Philippine rice terraces. Quezon City: Published by the National Research Council of the Philippines, University of The Philippines.Beyer, O. (1955). The origin and history of the Philippine rice terraces. Quezon City: Published by the National Research Council of the Philippines, University of The Philippines.Beyer, O. (1955). The origin and history of the Philippine rice terraces. Quezon City: Published by the National Research Council of the Philippines, University of The Philippines.Beyer, O. (1955). The origin and history of the Philippine rice terraces. Quezon City: Published by the National Research Council of the Philippines, University of The Philippines.Beyer, O. (1955). The origin and history of the Philippine rice terraces. Quezon City: Published by the National Research Council of the Philippines, University of The Philippines.
