Books by N. P. Taylor
List of Names of Succulent Pla
List of Names of Succulent Plants Other Than Cacti from Repertorium Plantarum Succulentarum 1950-1992
Threatened Cacti of Mexico
Development site evaluation
Development site evaluation
Genus Melocactus (Cactaceae) in Central and South America
IOS Index of Names of Cactaceae