Text ( visual ) : unmediated Recent progress in perception : readings from Scientific American / with introductions by Richard Held and Whitman Richards. -- : pbk. -- San Francisco : W. H. Freeman , c1976. -- 263 p. : ill. ; 30 cm. -- Bibliography: p. [255]-259 ; Includes index. -- ISBN 0716705346 ; 0716705338 ; (BA07030739) ; https://ci.nii.ac.jp/ncid/BA07030739 Author Heading(s): Held, Richard ; Richards, Whitman. -- Classification(s): LCC : QP441 ; DC : 612/.8/08. -- Subject Heading(s): LCSH : Perception -- Addresses, essays, lectures ; LCSH : Senses and sensation -- Addresses, essays, lectures