Pitman's where to look;
an easy guide to books of reference ...
APA Citation
Isaac Pitman & Sons. (190). Pitman's where to look: an easy guide to books of reference ... 2. ed. London: Sir I. Pitman & Sons, Ltd.
MLA Citation
Isaac Pitman & Sons. Pitman's Where to Look: an Easy Guide to Books of Reference ... 2. ed. London: Sir I. Pitman & Sons, Ltd, 190.
Warning: These citations may not always be complete (especially for serials).