APA
Khan B., Sokoloff Kl, . (1992). `S`chemes Of Practical Utility': Entrepreneurship And Innovation Among `G`reat Inventors' In The United States, 1790-1865. Cambridge, MA: NBER.
Chicago
Khan BZ, Sokoloff Kl, . 1992. `S`chemes Of Practical Utility': Entrepreneurship And Innovation Among `G`reat Inventors' In The United States, 1790-1865. Cambridge, MA: NBER.
Harvard
Khan B., Sokoloff Kl, . (1992). `S`chemes Of Practical Utility': Entrepreneurship And Innovation Among `G`reat Inventors' In The United States, 1790-1865. Cambridge, MA: NBER.
MLA
Khan BZ, Sokoloff Kl, . `S`chemes Of Practical Utility': Entrepreneurship And Innovation Among `G`reat Inventors' In The United States, 1790-1865. Cambridge, MA: NBER. 1992.