Debus 1968, p. 2 Debus, Allen G., ed. (1968). "Abbe, Cleveland". World Who's Who in Science: A Biographical Dictionary of Notable Scientists from Antiquity to the Present (1st ed.). Chicago, IL: A. N. Marquis Company. ISBN0-8379-1001-3. LCCN68056149.* Hoiberg, Dale H., ed. (2010). "Abbe, Cleveland". Encyclopædia Britannica. Vol. I: A-Ak - Bayes (15th ed.). Chicago, IL: Encyclopædia Britannica, Inc. ISBN978-1-59339-837-8. LCCN2008934270.
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Debus 1968, p. 2 Debus, Allen G., ed. (1968). "Abbe, Cleveland". World Who's Who in Science: A Biographical Dictionary of Notable Scientists from Antiquity to the Present (1st ed.). Chicago, IL: A. N. Marquis Company. ISBN0-8379-1001-3. LCCN68056149.* Hoiberg, Dale H., ed. (2010). "Abbe, Cleveland". Encyclopædia Britannica. Vol. I: A-Ak - Bayes (15th ed.). Chicago, IL: Encyclopædia Britannica, Inc. ISBN978-1-59339-837-8. LCCN2008934270.
Humphreys 1946, p. 1 Humphreys, William Jackson (1946). "Abbe, Cleveland". Dictionary of American Biography. Vol. I-II: Abbe-Brazer. New York, NY: Charles Scribner's Sons. pp. 1–2. LCCN60002195.
Asimov 1964, p. 344 Asimov, Isaac (1964). "Abbe, Cleveland". Asimov's Biographical Encyclopedia of Science and Technology: The Living Stories of More than 1000 Great Scientists from the Age of Greece to the Space Age. Garden City, NY: Doubleday & Company, Inc. pp. 343–344. LCCN64016199.