APA (7th ed.) Citation

(1992). Language discovery: English French German Spanish. Applied Optical Media Corp.

Chicago Style (17th ed.) Citation

Language Discovery: English French German Spanish. Pennysylvania: Applied Optical Media Corp, 1992.

MLA (8th ed.) Citation

Language Discovery: English French German Spanish. Applied Optical Media Corp, 1992.

Warning: These citations may not always be 100% accurate.