APA Edition Citation

Grace, H. W. (1971). A handbook on patents / by H.W. Grace. Knight.

Chicago Edition Citation

Grace, H. W. A Handbook on Patents / by H.W. Grace. Knight, 1971.

MLA Edition Citation

Grace, H. W. A Handbook on Patents / by H.W. Grace. Knight, 1971.

Warning: These citations may not always be 100% accurate.