APA aipamena

Vargas Zamora, J. A. (2015). An oak tree (Quercus sp.) in coins and paper money of Costa Rica (1848-1948).

Chicago Style aipamena

Vargas Zamora, José A. An Oak Tree (Quercus Sp.) in Coins and Paper Money of Costa Rica (1848-1948). 2015.

MLA aipamena

Vargas Zamora, José A. An Oak Tree (Quercus Sp.) in Coins and Paper Money of Costa Rica (1848-1948). 2015.

Kontuz: berrikusi erreferentzia hauek erabili aurretik.