APA (7th ed.) Citation

Medan, P. P. P. (1991). Buletin Perkebunan 1991 No 1-4. Pusat Penelitian Perkebunan (Rispa) Medan.

Chicago Style (17th ed.) Citation

Medan, Pusat Penelitian Perkebunan. Buletin Perkebunan 1991 No 1-4. Pusat Penelitian Perkebunan (Rispa) Medan, 1991.

MLA (8th ed.) Citation

Medan, Pusat Penelitian Perkebunan. Buletin Perkebunan 1991 No 1-4. Pusat Penelitian Perkebunan (Rispa) Medan, 1991.

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