Gaya APA
Kolb, K.
(1974).
Scientific Technical Supplies 3rd edition (KARL KOLB)
(
Ed 3)
.
Germany:
Karl Kolb KG.
Gaya MLA
Kolb, Karl.
"Scientific Technical Supplies 3rd edition (KARL KOLB)".
Ed 3
Germany:
Karl Kolb KG,
1974.
Text.