APA (7th ed.) Citation

Maptech, Inc. (1998). National park digital guide (Ed. 1.0.). Maptech.

Chicago Style (17th ed.) Citation

Maptech, Inc. National Park Digital Guide. Ed. 1.0. Greenland, N.H.: Maptech, 1998.

MLA (9th ed.) Citation

Maptech, Inc. National Park Digital Guide. Ed. 1.0. Maptech, 1998.