Skinner, R. J., Taylor, J. L., & Wegelin, E. A. (1987). Shelter upgrading for the urban poor: Evaluation of Third World experience. Island Pub. House.
Lua i Stíl Chicago (17ú heag.)Skinner, R. J., John L. Taylor, agus Emiel A. Wegelin. Shelter Upgrading for the Urban Poor: Evaluation of Third World Experience. Manila: Island Pub. House, 1987.
Lua MLA (9ú heag.)Skinner, R. J., et al. Shelter Upgrading for the Urban Poor: Evaluation of Third World Experience. Island Pub. House, 1987.
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