Frisch, Otto von. Hamsters : how to take care of them and understand them Hamsters a complete pet owner's manual. Otto von Frisch. - Hauppauge, NY : Barron's Educational Series, 1990. - 59 p. : ill., photos ISBN: 0812044398 4.50 LCCN: 90034407 Subjects--Topical Terms: Hamsters as pets.