APA (7th ed.) Citation

Welch, H., & Haddow, G. (1993). The world checklist of conifers: [the world conifer data pool] (1. ed.). Landsman's Bookshop.

Chicago Style (17th ed.) Citation

Welch, Humphrey, and Gordon Haddow. The World Checklist of Conifers: [the World Conifer Data Pool]. 1. ed. Buchenhill, Bromyard, Herefordshire: Landsman's Bookshop, 1993.

MLA (9th ed.) Citation

Welch, Humphrey, and Gordon Haddow. The World Checklist of Conifers: [the World Conifer Data Pool]. 1. ed. Landsman's Bookshop, 1993.