University College of Addis Ababa. Geophysical Observatory & Haile Sellassie I University. Geophysical Observatory. (1959). Bulletin of the Geophysical Observatory. University College Press.
Citace podle Chicago (17th ed.)University College of Addis Ababa. Geophysical Observatory a Haile Sellassie I University. Geophysical Observatory. Bulletin of the Geophysical Observatory. Addis Ababa: University College Press, 1959.
Citace podle MLA (8th ed.)University College of Addis Ababa. Geophysical Observatory a Haile Sellassie I University. Geophysical Observatory. Bulletin of the Geophysical Observatory. University College Press, 1959.
Upozornění: Tyto citace jsou generovány automaticky. Nemusí být zcela správně podle citačních pravidel..