APA

Annamma Y, Marattukalam J G & Panikkar A O N.Evaluation of twelve clones of Hevea brasiliensis (Willed ex.Adr. De Juss.) Muell. Arg. of exotic and indigenous origin in an estate trial. : Placrosym IX, Bangalore, 1990. Journal of Plantation Crops, 20 (Supplement): 207-211.

Chicago

Annamma Y, Marattukalam J G and Panikkar A O N.Evaluation of twelve clones of Hevea brasiliensis (Willed ex.Adr. De Juss.) Muell. Arg. of exotic and indigenous origin in an estate trial. : Placrosym IX, Bangalore, 1990. Journal of Plantation Crops, 20 (Supplement): 207-211.

Harvard

Annamma Y, Marattukalam J G and Panikkar A O N.Evaluation of twelve clones of Hevea brasiliensis (Willed ex.Adr. De Juss.) Muell. Arg. of exotic and indigenous origin in an estate trial. : Placrosym IX, Bangalore, 1990. Journal of Plantation Crops, 20 (Supplement): 207-211.

MLA

Annamma Y, Marattukalam J G and Panikkar A O N.: Placrosym IX, Bangalore, 1990. Journal of Plantation Crops, 20 (Supplement): 207-211. .