Call Number (LC) Title Results
A 77.463:43 Mineral deficiencies in Derris elliptica [plants]
Mineral deficiencies in Derris elliptica / 		2
A77.463..43 Mineral deficiencies in Derris elliptica [plants] 1
A 77.463:45 Life history, habits, and control of coconut rhinoceros beetle in Puerto Rico. 1
A77.463..45 Life history, habits, and control of coconut rhinoceros beetle in Puerto Rico. 1
A 77.463:46 Insect and other animal pests of cinchona and their control in Puerto Rico. 1
A77.463..46 Insect and other animal pests of cinchona and their control in Puerto Rico. 1
A 77.463:47 Cinchona propagation. 1
A77.463..47 Cinchona propagation. 1
A 77.463:48 Studies of factors influencing attack and control of bamboo powder-post beetle. 1
A77.463..48 Studies of factors influencing attack and control of bamboo powder-post beetle. 1
A 77.463:49 Insectidal properties of some plants growing in Puerto Rico. 1
A77.463..49 Insectidal properties of some plants growing in Puerto Rico. 1
A 77.464:24 Derris culture in Puerto Rico. 1
A77.464..24 Derris culture in Puerto Rico. 1
A 77.464:25 Vanilla curing.
Vanilla curing / 		2
A77.464..25 Vanilla curing. 1
A 77.464:25/span La Cura de la vainilla / 1
A 77.464:29 Bamboo culture and utilization in Puerto Rico [with list of literature cited / 1
A 77.464:30 Bay oil production in Puerto Rico. 1
A77.464..30 Bay oil production in Puerto Rico. 1