علم البراكين: الفرق بين النسختين

 

==المراجع==

 

== روابط خارجية ==

* {{cite journal |last=Strother |first=French |date=April 1915 |title=Frank A. Perret, Volcanologist |journal=[[World's Work|The World's Work: A History of Our Time]] |volume=XXIX |pages=688–706 |url=https://books.google.com/?id=l_2rn8M7DSsC&pg=RA1-PA688 |accessdate=2009-08-04 }} and {{cite journal |last=Strother |first=French |date=May 1915 |title=Frank A. Perret, Volcanologist (Concluded) |journal=[[World's Work|The World's Work: A History of Our Time]] |volume=XXX |pages=85–98 |url=https://books.google.com/?id=N69E9klDugUC&pg=PA85 |accessdate=2009-08-04 }}

 

[[تصنيف:علوم الأرض]]

[[تصنيف:جيولوجيا]]