APA (7th ed.) Citation

Young, R. G. N. (1952). A new species of Scrophulariaceae from South Africa ([Sonderdr.].).

Chicago Style (17th ed.) Citation

Young, R. G. N. A New Species of Scrophulariaceae from South Africa. [Sonderdr.]. 1952.

MLA (9th ed.) Citation

Young, R. G. N. A New Species of Scrophulariaceae from South Africa. [Sonderdr.]. 1952.

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