APA (7th ed.) Citation

Blanco, G. J. (1939). Four new Philippine species of fresh-water shrimps of the genus Caridina. s.n.,].

Chicago Style (17th ed.) Citation

Blanco, Guillermo J. Four New Philippine Species of Fresh-water Shrimps of the Genus Caridina. [S.l: s.n.,], 1939.

MLA (9th ed.) Citation

Blanco, Guillermo J. Four New Philippine Species of Fresh-water Shrimps of the Genus Caridina. s.n.,], 1939.