Environmental protection in Czechoslovakia / Alena Helclová, Martin Mrnka ; [translated by Jan Valeška ; photographs by Antonín Bahenský ... et al. ; cover and graphic layout by Miloslav Fulín]. -- Prague : Orbis, 1987 (TZ).
Mrnka, Martin. Valeška, Jan
fotografické publikace
502.3/.8. 502.3/.8(437)(084.121)