Gaya APA
Cleveland, A, D., CLEVELAND, D, B. (1983).
INTRODUCTION TO INDEXING AND ABSTRACTING .
Littleton, Colorado:
LIBRARS UNLIIMITED.
Gaya MLA
Cleveland, Ana, D.., CLEVELAND, Donald, B..
"INTRODUCTION TO INDEXING AND ABSTRACTING".
Littleton, Colorado:
LIBRARS UNLIIMITED,
1983.
Textbook.