More Microscopical Observations Made by the Same M. Leewenhoeck, and Promised in Numb. 97. of These Tracts; Communicated in His Letters of August 15. 1673 and of April 7. 1674
M. Leewenhoeck. "More Microscopical Observations Made by the Same M. Leewenhoeck, and Promised in Numb. 97. of These Tracts; Communicated in His Letters of August 15. 1673 and of April 7. 1674." Philosophical Transactions (1665-1678) (1674) 23-25