APA (7th ed.) Citation

Keijzer, C. J. (1935). On variability in East Indian Foraminifera. E.J. Brill.

Chicago Style (17th ed.) Citation

Keijzer, C. J. On Variability in East Indian Foraminifera. Leiden: E.J. Brill, 1935.

MLA (8th ed.) Citation

Keijzer, C. J. On Variability in East Indian Foraminifera. E.J. Brill, 1935.