T.R. Goddard
Retrieve the information about T.R. Goddard and his books on the go! Keep your project up to date with the ISBNdb book database searchable via API with 19 data points per book available.
Beta Mathematics: Bk. 3
Mental Arithmetic: Pupil's Book 5 (Bk. 5)
Time for Mathematics: Bk. 6
Mental Arithmetic: Pupil's Introductory Book (Mental Arithmetic)
Mental Arithmetic: Teacher's Book 1 (Mental Arithmetic)
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