February issue includes Appendix entitled Directory of United States Government periodicals and subscription publications; September issue includes List of depository libraries; June and December issues include semiannual index.

In 1973, a seminar was held by Resources for the Future to bring together the new and growing community of scholars researching into the general field of energy modelling. Originally published in the same year, this report gathers together all of the papers presented at that seminar in order to further spread the results of these studies with those who were unable to attend. The papers cover a full range of techniques used for energy modelling whilst commenting on current government and industry models. This title will be of interest to students of Environmental Studies.