"howard, b a. "
First ideas of trigonometry: / B.A. Howard - 1 ed. - uk : ginn and company 1924. - ", 95p.; 18 cm."
hard cover
QA531 / .H69 1924
First ideas of trigonometry: / B.A. Howard - 1 ed. - uk : ginn and company 1924. - ", 95p.; 18 cm."
hard cover
QA531 / .H69 1924