APA (7th ed.) Citation

G.G. Baker and Associates & Baker, G. G. (1979). A Guide to microfilm readers and reader-printers (4th ed.). G.G. Baker & Associates.

Chicago Style (17th ed.) Citation

G.G. Baker and Associates and G. G. Baker. A Guide to Microfilm Readers and Reader-printers. 4th ed. Guildford: G.G. Baker & Associates, 1979.

MLA (8th ed.) Citation

G.G. Baker and Associates and G. G. Baker. A Guide to Microfilm Readers and Reader-printers. 4th ed. G.G. Baker & Associates, 1979.