TY - BOOK AU - MacLennan,D.N. AU - Simmonds,E.John TI - Fisheries acoustics SN - 0412330601 (acidfree paper) AV - SH344.2 .M33 1991 U1 - 639.2 20 PY - 1992/// CY - London, New York PB - Chapman & Hall KW - Fishes KW - Detection N1 - Includes bibliographical references (p. [291]-309) and indexes ER -