The seasonal variation in the concentration of strontium 90 in rain and its dependence on latitude.

MLA

Ehhalt, D. H., and G. Haumacher. “The Seasonal Variation in the Concentration of Strontium 90 in Rain and Its Dependence on Latitude.” Journal of Geophysical Research, vol. 75, no. 15, Jan. 1970, pp. 3027–31. EBSCOhost, https://doi.org/10.1029/JC075i015p03027.

APA

Ehhalt, D. H., & Haumacher, G. (1970). The seasonal variation in the concentration of strontium 90 in rain and its dependence on latitude. Journal of Geophysical Research, 75(15), 3027–3031. https://doi.org/10.1029/JC075i015p03027

Chicago

Ehhalt, D. H., and G. Haumacher. 1970. “The Seasonal Variation in the Concentration of Strontium 90 in Rain and Its Dependence on Latitude.” Journal of Geophysical Research 75 (15): 3027–31. doi:10.1029/JC075i015p03027.