Cita APA (7a ed.)

Kopp, P. A. (2016). Hoptopia: A world of agriculture and beer in Oregon's Willamette Valley. University of California Press.

Cita Chicago Style (17a ed.)

Kopp, Peter Adam. Hoptopia: A World of Agriculture and Beer in Oregon's Willamette Valley. Oakland, California: University of California Press, 2016.

Cita MLA (8a ed.)

Kopp, Peter Adam. Hoptopia: A World of Agriculture and Beer in Oregon's Willamette Valley. University of California Press, 2016.