A teacher's guide;
[written by Melville Harris, Director, Meurig Evans and Gwenallt Rees]
- London, Hart-Davis, 1972.
- 97, [8] p. col. illus. 23 cm.
Bibliography: p. [90]-94.
0247544418
74163828
B72-31097
Environmental education.
QH541.2 / .G73 1972a
372.83
Bibliography: p. [90]-94.
0247544418
74163828
B72-31097
Environmental education.
QH541.2 / .G73 1972a
372.83