ACKERMAN A. BERNARD 804,682 STEFFEN CHARLES, ACKERMAN A. BERNARD Neoplasms with sebaceous differentiation / Charles Steffen, A. Bernard Ackerman ; photomicrography by William A. Atkinson ; draw. by Mario Di Leonardo. - Philadelphia [etc.] : Lea and Febiger a Waverly Co., 1994. - XIV, 751 s. ; il. , 29 cm (Ackerman's Histologic Diagnosis of Neoplastic Skin Diseases. A Method by Pattern Analysis) ISBN 0-8121-1459-0