APA (7th ed.) Citation

Gibson, J. (1983). Fifty hikes in Maine: Day hikes and backpacking trips from the coast to Katahdin (2nd ed., rev. and updated.). Backcountry Publications.

Chicago Style (17th ed.) Citation

Gibson, John. Fifty Hikes in Maine: Day Hikes and Backpacking Trips from the Coast to Katahdin. 2nd ed., rev. and updated. Woodstock, Vt.: Backcountry Publications, 1983.

MLA (9th ed.) Citation

Gibson, John. Fifty Hikes in Maine: Day Hikes and Backpacking Trips from the Coast to Katahdin. 2nd ed., rev. and updated. Backcountry Publications, 1983.