APA

sperling a., stuart m., . (1967). mathematics. london: w.h. allen.

Chicago

sperling abraham, stuart monroe, . 1967. mathematics. london: w.h. allen.

Harvard

sperling a., stuart m., . (1967). mathematics. london: w.h. allen.

MLA

sperling abraham, stuart monroe, . mathematics. london: w.h. allen. 1967.