Manila Observatorio, Philippine Islands. Weather Bureau, & Deppermann, C. E. (1929). Initial studies in atmospheric electricity at the Manila observatory, October 1927-December 1928. Bureau of Print.
Chicago-referens (17:e uppl.)Manila Observatorio, Philippine Islands. Weather Bureau, och Charles Edward Deppermann. Initial Studies in Atmospheric Electricity at the Manila Observatory, October 1927-December 1928. Manila: Bureau of Print, 1929.
MLA-referens (9:e uppl.)Manila Observatorio, et al. Initial Studies in Atmospheric Electricity at the Manila Observatory, October 1927-December 1928. Bureau of Print, 1929.
Varning: dessa hänvisningar är inte alltid fullständigt riktiga.