Maar, G. (1971). Johannes Kepler. Katalog des Oö Landesmuseums 74.
Chicago Style CitationMaar, Gerold. "Johannes Kepler." Katalog Des Oö Landesmuseums 74 1971.
MLA CitationMaar, Gerold. "Johannes Kepler." Katalog Des Oö Landesmuseums 74 1971.
Warning: These citations may not always be 100% accurate.