American Horticultural Society. (2025). Essential guide to organic vegetable gardening: Techniques and know-how for planning, planting, and tending a home vegetable garden organically. Cool Springs Press.
Trích dẫn kiểu Chicago (xuất bản lần thứ 7)American Horticultural Society. Essential Guide to Organic Vegetable Gardening: Techniques and Know-how for Planning, Planting, and Tending a Home Vegetable Garden Organically. Beverly, MA: Cool Springs Press, 2025.
Trích dẫn kiểu MLA (xuất bản lần thứ 8)American Horticultural Society. Essential Guide to Organic Vegetable Gardening: Techniques and Know-how for Planning, Planting, and Tending a Home Vegetable Garden Organically. Cool Springs Press, 2025.
Cảnh báo: Các trích dẫn này có thể không phải lúc nào cũng chính xác 100%.