The swallowtail butterflies of North America.
Healdburg: Naturegraph Company, 1975. Octavo, text illustrations, signed by the author, softcover. More
Healdburg: Naturegraph Company, 1975. Octavo, text illustrations, signed by the author, softcover. More
Gainesville: Scientific Publishers, 1994. Quarto, colour photographs, tipped in a printed note signed by all three authors for Tim New, a fine copy in dustwrapper. More