Nagle, Stuart. (1997). Citrus for the Gulf Coast: A Guide for Homeowners and Gardeners. Clear Lake Shores, Texas: Forest of Treasures Press.

• Стр.: 20, 22, 18, 36-39 (Grapefruits & Mandarins)
• Стр.: 41-45 (Kumquats and Hybrids)
• Стр.: 46-51 (Ichang Papeda Hybrids)
• Стр.: 52-56 (Trifoliate and SanCitChang)
• Citrus for the Gulf Coast на Гугл Книгах