Gaya APA
, . (1977).
Proceeding of the sixth AeanPacipic Weed Science society Comfrence .
Jakarta:
The ASIAN Pacipic Weed.
Gaya MLA
, .
"Proceeding of the sixth AeanPacipic Weed Science society Comfrence".
Jakarta:
The ASIAN Pacipic Weed,
1977.
Printed Book.