Introduction to the science of language
MLA
Sayce, A. H. Introduction to the Science of Language. 4th ed. London: K. Paul, Trench, Trübner & Co., Ltd., 1900
APA, 7th edition
Sayce, A. H. (1900). Introduction to the science of language. 4th ed. London: K. Paul, Trench, Trübner & Co., Ltd
Chicago, 17th edition
Sayce, A. H. Introduction to the science of language. 4th ed. London: K. Paul, Trench, Trübner & Co., Ltd., 1900