Alvarado, G. E., & Schmincke, H. U. (2011). The 1723 A.D. violent strombolian and phreatomagmatic eruption at Irazú volcano, Costa Rica.
Čikaški stil citiranjaAlvarado, Guillermo E., i Hans Ulrich Schmincke. The 1723 A.D. Violent Strombolian and Phreatomagmatic Eruption At Irazú Volcano, Costa Rica. 2011.
MLA način citiranjaAlvarado, Guillermo E., i Hans Ulrich Schmincke. The 1723 A.D. Violent Strombolian and Phreatomagmatic Eruption At Irazú Volcano, Costa Rica. 2011.
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