APA (7th ed.) Citation

Medan, P. P. P. (1989). Buletin Perkebunan Vol.20 No.1-4 Thn.1989. Pusat Penelitian Perkebunan Medan.

Chicago Style (17th ed.) Citation

Medan, Pusat Penelitian Perkebunan. Buletin Perkebunan Vol.20 No.1-4 Thn.1989. Pusat Penelitian Perkebunan Medan, 1989.

MLA (8th ed.) Citation

Medan, Pusat Penelitian Perkebunan. Buletin Perkebunan Vol.20 No.1-4 Thn.1989. Pusat Penelitian Perkebunan Medan, 1989.

Warning: These citations may not always be 100% accurate.