APA (7th ed.) Citation

Petch, C. P., & Swann, E. L. (1968). Flora of Norfolk / by C.P. Petch and E.L. Swann. Jarrold & Sons.

Chicago Style (17th ed.) Citation

Petch, Charles Plowright, and Eric Lister Swann. Flora of Norfolk / by C.P. Petch and E.L. Swann. Norwich: Jarrold & Sons, 1968.

MLA (9th ed.) Citation

Petch, Charles Plowright, and Eric Lister Swann. Flora of Norfolk / by C.P. Petch and E.L. Swann. Jarrold & Sons, 1968.

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