APA Style

Robinson, M., Davidson, G, W. (1999). Chambers 21st century dictionary / editor-in-chief Mairi Robinson ; senior editor George Davidson. (Rev. ed.). Edinburgh: Chambers.

MLA Style

Robinson, M.., Davidson, G., W.. "Chambers 21st century dictionary / editor-in-chief Mairi Robinson ; senior editor George Davidson.". Rev. ed. Edinburgh: Chambers, 1999. Text.