APA (7th ed.) Citation

Rechinger, K. H. (1937). The North American species of Rumex. [publisher not identified].

Chicago Style (17th ed.) Citation

Rechinger, K. H. The North American Species of Rumex. Chicago: [publisher not identified], 1937.

MLA (9th ed.) Citation

Rechinger, K. H. The North American Species of Rumex. [publisher not identified], 1937.

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