APA Citation

Drum, R. W. (1963). Notes on Iowa diatoms. [s.l.]: [s.n.].

Chicago Style Citation

Drum, Ryan W. Notes On Iowa Diatoms. [s.l.]: [s.n.], 1963.

MLA Citation

Drum, Ryan W. Notes On Iowa Diatoms. [s.l.]: [s.n.], 1963.

Warning: These citations may not always be 100% accurate.