Nature detection and conservation /
Mellanby Jean
Nature detection and conservation / Jean Mellanby ; illustrated by Vera Croxford. - London : Transworld, 1972. - 143 p. : ill., 1 form ; 20 cm. - Carousel books .
Bibliography: p. 140-143.
0552540196
Natural history--Juvenile literature
QH48
500.9
Nature detection and conservation / Jean Mellanby ; illustrated by Vera Croxford. - London : Transworld, 1972. - 143 p. : ill., 1 form ; 20 cm. - Carousel books .
Bibliography: p. 140-143.
0552540196
Natural history--Juvenile literature
QH48
500.9