The Proper Care of Cockatiels
1) The New Cockatiel Handbook
by Matthew M. Vriends; Barron’s, 1st ed., 1989; ISBN: 0-8120-4201-8; 143 pages.
2) The Proper Care of Cockatiels
by Karl-Herbert Delpy; T.F.H. Publications, 1st ed., 1992; ISBN-10: 0866221891; ISBN-13: 978-0866221894; 256 pages.
3) Living with a Cockatiel
edited by Neil A. Forbes; Barron’s, 1st ed., 2007; ISBN-10: 0-7641-5956-9; ISBN-13: 978-0-7641-5956-5; 127 pages.