Garff, Royal L. 1904- You can learn to speak! [electronic resource] . — Special rev. ed.. — Freeport, Me., : Bond Wheelwright Co., [1966]. — 267 p. : illus. 27 cm. and phonodisc (2 s. 8 in. 33 1/3 rpm. microgroove) in pocket.
Phonodisc: Earl Nightingale tells you The strangest secret.