Elrod, J. McRee.
Choice of main and added entries / by J. McRee Elrod. - 2d ed. - Metuchen, N.J. : Scarecrow Press, 1978. - viii, 82 p. : ill. ; 22 cm. - His Modern library practices series ; no. 4 .
0810810956
77016788
Descriptive cataloging--Programmed instruction.
Z674 Z696.E47 / .E47 1978 no. 4
025 s 025.3/2
Choice of main and added entries / by J. McRee Elrod. - 2d ed. - Metuchen, N.J. : Scarecrow Press, 1978. - viii, 82 p. : ill. ; 22 cm. - His Modern library practices series ; no. 4 .
0810810956
77016788
Descriptive cataloging--Programmed instruction.
Z674 Z696.E47 / .E47 1978 no. 4
025 s 025.3/2