APA (7th ed.) Citation

Wettstein, R. (1891). Nolanaceae, Solanaceae, Scrophulariaceae.

Chicago Style (17th ed.) Citation

Wettstein, Richard. Nolanaceae, Solanaceae, Scrophulariaceae. 1891.

MLA (9th ed.) Citation

Wettstein, Richard. Nolanaceae, Solanaceae, Scrophulariaceae. 1891.

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