Gaya APA
WELLISCH, Hans. (1972).
The Universal Decimal Classification a Programmed Instruction Course .
Bandung:
Refresher course in library science and scientific.
Gaya Chicago
WELLISCH, Hans.
The Universal Decimal Classification a Programmed Instruction Course.
Bandung:
Refresher course in library science and scientific,
1972.
Textbook.
Gaya MLA
WELLISCH, Hans.
The Universal Decimal Classification a Programmed Instruction Course.
Bandung:
Refresher course in library science and scientific,
1972.
Textbook.
Gaya Turabian
WELLISCH, Hans.
The Universal Decimal Classification a Programmed Instruction Course.
Bandung:
Refresher course in library science and scientific,
1972.
Textbook.