BORLAND C++ TOOLS AND UTILITIES GUIDE, Borland International, 1992, pp. 9-42. [One of the manuals distributed with Borland C++, ver. 3.1. Gives a fairly good intro to Make syntax and concepts, using Borland's limited implementation thereof.] DuBois, Paul: SOFTWARE PORTABILITY WITH IMAKE, O'Reilly and Associates, 1996, ISBN 1-56592-226-3. [This is reputed to be the definitive Imake reference, though I did not have it available when writing this article.] Lehey, Greg: PORTING UNIX SOFTWARE, O'Reilly and Associates, 1995, ISBN 1-56592-126-7. Mui, Linda and Valerie Quercia: X USER TOOLS, O'Reilly and Associates, 1994, ISBN 1-56592-019-8, pp. 734-760. Oram, Andrew and Steve Talbott: MANAGING PROJECTS WITH MAKE, O'Reilly and Associates, 1991, ISBN 0-937175-90-0. Stallman, Richard M. and Roland McGrath: GNU MAKE, Free Software Foundation, 1995, ISBN 1-882114-78-7. Welsh, Matt and Lar Kaufman: RUNNING LINUX, O'Reilly and Associates, 1995, ISBN 1-56592-100-3, pp. 325-333, 377-379, 381. [Still the best overall Linux reference, though lacking in depth in some areas.]
And, of course, the man pages
for make, imake, xmkmf, and ldconfig.