APA (7th ed.) Citation

Streng, E. F. (1970). [Lava Flow at Hekla].

Chicago Style (17th ed.) Citation

Streng, Evelyn Fiedler. [Lava Flow at Hekla]. 1970.

MLA (9th ed.) Citation

Streng, Evelyn Fiedler. [Lava Flow at Hekla]. 1970.

Warning: These citations may not always be 100% accurate.