21
Tebbutt, T. H. Y.
| Pergamon Press |
1977
22
Waxman, Chaim Isaac.
| Pergamon Press |
1977
23
Dave, R. H.
| Published for the UNESCO Institute for Education b |
1976
24
Bennett, John William,
| Pergamon Press |
1976
25
Landau, L. D.
| Pergamon Press |
1976
26
Trethewey, A. R.
| Pergamon Press |
1976
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Livesley, R. K.
| Pergamon Press |
1975
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Britvec, S. J.
| Pergamon Press |
1973
30
George, David V.
| Pergamon Press |
1972