APA
Gokhale J., Kotlikoff L. J. & Warshawsky M. J. (1999). Comparing the economic and conventional approaches to financial planning. Cambridge, Mass: National Bureau of Economic Research.
Chicago
Gokhale Jagadeesh, Kotlikoff Laurence J and Warshawsky Mark J. 1999. Comparing the economic and conventional approaches to financial planning. Cambridge, Mass: National Bureau of Economic Research.
Harvard
Gokhale J., Kotlikoff L. J. and Warshawsky M. J. (1999). Comparing the economic and conventional approaches to financial planning. Cambridge, Mass: National Bureau of Economic Research.
MLA
Gokhale Jagadeesh, Kotlikoff Laurence J and Warshawsky Mark J. Comparing the economic and conventional approaches to financial planning. Cambridge, Mass: National Bureau of Economic Research. 1999.