Hartman, Roland Clarence, 1906- Keeping chickens in cages; a description of the outdoor individual cage system of poultry management as developed mainly in southern California. - Redlands, Calif. [1950] - 181 p. illus. 21 cm. LCCN: agr50000069 Subjects--Topical Terms: Poultry. LC Class. No.: SF487 / .H313 Dewey Class. No.: 636.50831