Gaya APA
Tri Endar Suswatiningsih,SP.,MP, BITTNER, RICHARD H. (1987).
Agricultural safety .
Moline:
Deere & Company.
Gaya Chicago
Tri Endar Suswatiningsih,SP.,MP, BITTNER, RICHARD H.
Agricultural safety.
Moline:
Deere & Company,
1987.
.
Gaya MLA
Tri Endar Suswatiningsih,SP.,MP, BITTNER, RICHARD H.
Agricultural safety.
Moline:
Deere & Company,
1987.
.
Gaya Turabian
Tri Endar Suswatiningsih,SP.,MP, BITTNER, RICHARD H.
Agricultural safety.
Moline:
Deere & Company,
1987.
.