APA (7th ed.) Citation

Villadolid, D. V., & Del Rosario, F. G. (1930). Some studies on the biology of tulla (Corbicula Manillensis Philippi), a common food clam of Laguna de Bay and its tributaries. s. l].

Chicago Style (17th ed.) Citation

Villadolid, Deogracias V., and Fidel G. Del Rosario. Some Studies on the Biology of Tulla (Corbicula Manillensis Philippi), a Common Food Clam of Laguna De Bay and Its Tributaries. [s. n: s. l], 1930.

MLA (9th ed.) Citation

Villadolid, Deogracias V., and Fidel G. Del Rosario. Some Studies on the Biology of Tulla (Corbicula Manillensis Philippi), a Common Food Clam of Laguna De Bay and Its Tributaries. s. l], 1930.