Chemical principles : a programmed text /
Runquist, Olaf Allan.
Chemical principles : a programmed text / by Olaf Runquist, Clifford J. Creswell, J. Thomas Head. - Minneapolis : Burgess Pub. Co., 1968. - iii, 462 p. : ill.
68015090
Chemistry--Programmed instruction.
Chemical principles : a programmed text / by Olaf Runquist, Clifford J. Creswell, J. Thomas Head. - Minneapolis : Burgess Pub. Co., 1968. - iii, 462 p. : ill.
68015090
Chemistry--Programmed instruction.