CARRIGHAR Sally Blue whale / by Sally Carrighar - London : Gollancz , 1978 - [vii], 169 p. ; 21 cm. Originally published: as 'The twilight seas'. New York : Waybright and Talley, 1975 ISBN: 0575023694 (hbk.) Subjects--Topical Terms: BLUE WHALES--ANECDOTES