na INLIS000000000000550 20231120092112 0010-0422000550 231120 g 0 eng 0-85834-626-5 en 636.597 David J. Farrell Paul Stapleton Duck Production Science and World Practice Armidale : The University of New England, 1985 636.597 DAV d - 429p. : ill.; 24,5 cm Itik