APA
Hays D. G., . (1970). An Essay on the prefession of linguistcs as a custome for automatic documentation. California-US: The Federation Internationale de Documentation.
Chicago
Hays David G, . 1970. An Essay on the prefession of linguistcs as a custome for automatic documentation. California-US: The Federation Internationale de Documentation.
Harvard
Hays D. G., . (1970). An Essay on the prefession of linguistcs as a custome for automatic documentation. California-US: The Federation Internationale de Documentation.
MLA
Hays David G, . An Essay on the prefession of linguistcs as a custome for automatic documentation. California-US: The Federation Internationale de Documentation. 1970.