APA

Koehler W. C., . (1988). Evaluation of CEER productivity, 1979-80 to 1987-88. San Juan, P.R: Center for Energy and Environment Research, University of Puerto Rico, U.S. Dept. of Energy.

Chicago

Koehler Wallace C, . 1988. Evaluation of CEER productivity, 1979-80 to 1987-88. San Juan, P.R: Center for Energy and Environment Research, University of Puerto Rico, U.S. Dept. of Energy.

Harvard

Koehler W. C., . (1988). Evaluation of CEER productivity, 1979-80 to 1987-88. San Juan, P.R: Center for Energy and Environment Research, University of Puerto Rico, U.S. Dept. of Energy.

MLA

Koehler Wallace C, . Evaluation of CEER productivity, 1979-80 to 1987-88. San Juan, P.R: Center for Energy and Environment Research, University of Puerto Rico, U.S. Dept. of Energy. 1988.