Trewarth G.T
Discovery by chance; Glennt Trewartha Arthur H. Robinson... [at..el] - New York, McGraw-Hill, [1977] - viii, 376 p. illus. 24 cm.
Bibliography: p. 176-179.
B-7369
68021129
Science--Juvenile literature.
GB55.T73 1977 / .T73 1977
Discovery by chance; Glennt Trewartha Arthur H. Robinson... [at..el] - New York, McGraw-Hill, [1977] - viii, 376 p. illus. 24 cm.
Bibliography: p. 176-179.
B-7369
68021129
Science--Juvenile literature.
GB55.T73 1977 / .T73 1977