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Travel & Vacations National Park Advocates, LLC: Essential Friends: Celebrating National Park Friends GroupsPrint: $12.95 Digital: $2.10 free with Print
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Travel & Vacations National Park Advocates, LLC: National Parks Traveler Essential Park Guide, Winter 2013-14Print: $7.50 Digital: $2.00 free with Print
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Travel & Vacations National Park Advocates, LLC: Essential Park Guide, Spring 2014Print: $9.95 Digital: $2.00 free with Print
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Outdoors & Nature Nicholas Whitman Bookstore: Schoodic PointPrint: $18.40 Digital: $3.10 free with Print