APA (7th ed.) Citation

Pilbeam, J. (1985). Sulcorebutia and Weingartia: A collector's guide. Timber Press.

Chicago Style (17th ed.) Citation

Pilbeam, John. Sulcorebutia and Weingartia: A Collector's Guide. Portland, Ore: Timber Press, 1985.

MLA (9th ed.) Citation

Pilbeam, John. Sulcorebutia and Weingartia: A Collector's Guide. Timber Press, 1985.

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