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961
-
962
On the endomerphism semigroups and congruence lattice of semigroups [microform].
Vydáno 1980Visual Material -
963
-
964
A case study of casual employment in the Philippine government the Ministry of Public Highways [microform].
Vydáno 1980Visual Material -
965
-
966
-
967
-
968
-
969
An economic analysis of share tenancy for rice farms in Bangladesh [microform].
Vydáno 1980Visual Material -
970
The effects of extension and technical knowledge on farmer productivity in Nueva Ecija, Philippines [microform]
Vydáno 1980Visual Material