Computational skills A: addition /
Studebaker, Gordon
Computational skills A: addition / by Gordon Studebaker and John W. Studebaker. - New York : Scholastic Inc, 1980. - 32p. ; ill. - Scholastic Skills Book .
0-590-30167-5
Mathematics
TR(GS 513.21 / C651 1980
Computational skills A: addition / by Gordon Studebaker and John W. Studebaker. - New York : Scholastic Inc, 1980. - 32p. ; ill. - Scholastic Skills Book .
0-590-30167-5
Mathematics
TR(GS 513.21 / C651 1980