African Violets(Updated) The Complete Guide by Joan Hill, GwenGoodship Paperback, 124 Pages, Published 1998 by Crowood Press ISBN-13: 978-1-86126-150-2, ISBN: 1-86126-150-0
"The African Violet continues to increase in popularity, having developed over the past 50 years from its few hundred varieties to the thousands that exist today in an ever-increasing range of color and type. This complete guide includes chapters on the plant's history, development, and classification, and a wealth of practical information and advice on propagation, general care, hybridization, and the prevention and treatment of pests ..."
African Violets The Complete Guide by Joan Hill, GwenGoodship Hardcover, 124 Pages, Published 1995 by Crowood Press (Uk) ISBN-13: 978-1-85223-874-2, ISBN: 1-85223-874-7
"The African Violet (Saintpaulia) continues to increase in popularity, having developed over the past 50 years from its few hundred varieties to the many thousands that exist today in an ever-increasing range of colour and type. This complete guide details the plant's history, development and classification, and practical information and advice on propagation, general care, hybridization and the prevention of pests and diseases. Written ..."