Gaya APA
Balek, J. (1983).
developments in water science Vol 18 Hydrology and Water Resources in Tropical Regions .
Czechoslovkia:
Elsevier.
Gaya MLA
Balek, Jaroslav.
"developments in water science Vol 18 Hydrology and Water Resources in Tropical Regions".
Czechoslovkia:
Elsevier,
1983.
E-book.