APA (7th ed.) Citation

Fischer, O., Norde, M., & Perridon, H. (2004). Up and Down the Cline-- the Nature of Grammaticalization.

Chicago Style (17th ed.) Citation

Fischer, Olga, Muriel Norde, and Harry Perridon. Up and Down the Cline-- the Nature of Grammaticalization. 2004.

MLA (9th ed.) Citation

Fischer, Olga, et al. Up and Down the Cline-- the Nature of Grammaticalization. 2004.