Gaya APA
A.G, S, D.
(1947).
AN INTRODUCTION TO PALEOBOTANI
.
United State of America:
MCGRAW BOOK COMPANY.
Gaya MLA
A.G, S., DIEN.
"AN INTRODUCTION TO PALEOBOTANI".
United State of America:
MCGRAW BOOK COMPANY,
1947.
Textbook.