LC CutterNumber :
.I73,No.12
Corp. Body :
Ministry of Economy: Geological Survey of Iran
Title :
Upper permian and permian- triassic voundary in North Iran
Author Statement :
by D.L. Stepanov, and others
Publication :
Geological Survey of Iran
Collation :
72 p.: illus, plates.; 26 cm
Series :
Geological Survey of Iran, No. 12
Subject :
Geology- Iran- Surveys
ETC :
with contribution by: B. Hamzepour, and others
