APA (7th ed.) Citation

Hart, E. H. (1978). Budgerigar handbook (Rev. ed.). T.F.H. Publications.

Chicago Style (17th ed.) Citation

Hart, Ernest H. Budgerigar Handbook. Rev. ed. Neptune, N.J.: T.F.H. Publications, 1978.

MLA (9th ed.) Citation

Hart, Ernest H. Budgerigar Handbook. Rev. ed. T.F.H. Publications, 1978.