APA
Haines W B, Pillay K S, . (1933). Note on the acidity of raw humus in relation to natural covers. : Journal of the Rubber Research Institute of Malaya.
Chicago
Haines W B, Pillay K S, . 1933. Note on the acidity of raw humus in relation to natural covers. : Journal of the Rubber Research Institute of Malaya.
Harvard
Haines W B, Pillay K S, . (1933). Note on the acidity of raw humus in relation to natural covers. : Journal of the Rubber Research Institute of Malaya.
MLA
Haines W B, Pillay K S, . Note on the acidity of raw humus in relation to natural covers. : Journal of the Rubber Research Institute of Malaya. 1933.