Reference

The Illustrated Dictionary of Gardening, Division 1; A to Car

The flowering plants of South Africa; vol. 4

What is that Plant

Gardening in the Lower Midwest

The Fern Lover's Companion

Ducks and Geese: Standard Breeds and Management

Manual of the apiary

Seeds of Michigan Weeds

Vegetable Teratology

Gardening: The Complete Guide

Pat Welsh's Southern California Organic Gardening (3rd Edition)

The Ever Curious Gardener

Propagation: Specialist Guide

Native Plants for Southwestern Landscapes