APA (7th ed.) Citation

Guttag, J. V., Horning, J. J., & Modet, A. (1990). Report on the Larch Shared Language: Version 2.3.

Chicago Style (17th ed.) Citation

Guttag, John V., James J. Horning, and Andrés Modet. Report on the Larch Shared Language: Version 2.3. Palo Alto, Calif, 1990.

MLA (9th ed.) Citation

Guttag, John V., et al. Report on the Larch Shared Language: Version 2.3. 1990.