APA aipamena

Castro, I. R. (1978). The effect of photoperiod on the flowering of Polytrias amaura (Buse) O. Ktze [microform]. Photoduplication Service. University of the Philippines Library.

Chicago Style aipamena

Castro, Irma Remo. The Effect of Photoperiod on the Flowering of Polytrias Amaura (Buse) O. Ktze [microform]. Quezon City: Photoduplication Service. University of the Philippines Library, 1978.

MLA aipamena

Castro, Irma Remo. The Effect of Photoperiod on the Flowering of Polytrias Amaura (Buse) O. Ktze [microform]. Photoduplication Service. University of the Philippines Library, 1978.