Ekstron Claus Thorn R primer (The R series) Ekstron Claus Thorn - 2nd - Boca Raton CRC Press 2016 - xvii,408p. cm. ISBN: UKP 39.99 Standard No.: 135995 Source: 8162, 19/09/2017, Efficient Book Distributors Textual Subjects--Topical Terms: Financial Studies Dewey Class. No.: D6,8(B), Q6