Laurence, Michael, 1940- Playboy's investment guide / [electronic resource] / Michael Laurence.. — Chicago : : Playboy Press,, 1971.. — 288 p. — (Playboy press executive library.). LCCN: 77167610 Subjects--Topical Terms: Investissements. LC Class. No.: HG4521 L379p Dewey Class. No.: 332.6/78