APA Citation

Winterringer, G. S. 1. (1967). Wild orchids of Illinois. [Lugar de publicación no identificado]: Authority of the State of Illinois.

Chicago Style Citation

Winterringer, Glen Spelman 1906-. Wild Orchids of Illinois. [Lugar de publicación no identificado]: Authority of the State of Illinois, 1967.

MLA Citation

Winterringer, Glen Spelman 1906-. Wild Orchids of Illinois. [Lugar de publicación no identificado]: Authority of the State of Illinois, 1967.

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