Citazione Stile APA (7a Edizione)
ebrary, Inc, & Sheets, P. D. (2002). Before the volcano erupted: The ancient Cerèn village in Central America. University of Texas Press.
Citazione stile Chigago Style (17a edizione)
ebrary, Inc, e Payson D. Sheets. Before the Volcano Erupted: The Ancient Cerèn Village in Central America. Austin: University of Texas Press, 2002.
Citatione MLA (9a ed.)
ebrary, Inc, e Payson D. Sheets. Before the Volcano Erupted: The Ancient Cerèn Village in Central America. University of Texas Press, 2002.
Attenzione: Queste citazioni potrebbero non essere precise al 100%.