ICSU symposium series
Published for the ICSU Press by IRL Press
edited by Ricardo B. Maccioni and Juan Aréchaga
Published for the ICSU Press by IRL Press c1987 ICSU symposium series no. 8 , I.U.B. symposium series v. 160
Available at 5 libraries
edited by Mervyn C. Berman, Wieland Gevers, and Lionel Opie
Published for the ICSU Press by IRL Press c1985 ICSU symposium series no. 6