Meyer, Nicholas. The seven-per-cent solution; being a reprint from the reminiscences of John H. Watson, M.D., as edited by Nicholas Meyer. - [1st ed.] - New York, Dutton, 1974. - 253 p. 22 cm. ISBN: 0525200150 LC Class. No.: PS3563.E88 / S4 Dewey Class. No.: 813/.5/4