APA

stafford l., . (1978). mathematics for economists. london: english language book society.

Chicago

stafford l.w.t, . 1978. mathematics for economists. london: english language book society.

Harvard

stafford l., . (1978). mathematics for economists. london: english language book society.

MLA

stafford l.w.t, . mathematics for economists. london: english language book society. 1978.