Bethe, E. (1851). De spermatozois observationes nonnullae novae.
Chicago Style (17th ed.) CitationBethe, Eduard. De Spermatozois Observationes Nonnullae Novae. 1851.
MLA (9th ed.) CitationBethe, Eduard. De Spermatozois Observationes Nonnullae Novae. 1851.
Warning: These citations may not always be 100% accurate.