Index on liberty an international directory of institutions and publications of interest to promoters of reason and liberty.

MLA

Sommerfelt Pettersen, Jan. Index On Liberty an International Directory of Institutions and Publications of Interest to Promoters of Reason and Liberty. San Francisco, 1990.

APA

Sommerfelt Pettersen, J. (1990). Index on liberty an international directory of institutions and publications of interest to promoters of reason and liberty. San Francisco.

Chicago

Sommerfelt Pettersen, Jan Index On Liberty an International Directory of Institutions and Publications of Interest to Promoters of Reason and Liberty. San Francisco, 1990.