APA Style

Harrison, I, W, ,, D, M, &, S. (1984). Enviromental systems : an introductory text . London: Unwin Hyman Ltd.

MLA Style

Harrison, I.D., White, ,, D.N., Mottershead, &, S.J.. "Enviromental systems : an introductory text". London: Unwin Hyman Ltd, 1984. Text.