Gaya APA

Jenkner, D, P, A. et al (1959). Preliminari Examination Of The Coal Samples From SE Kalimantan And The Mahakam Disrtict . Bandung: Pusat Sumber Daya Geologi.

Gaya MLA

Jenkner, Dr., Phil, A. et al. "Preliminari Examination Of The Coal Samples From SE Kalimantan And The Mahakam Disrtict". Bandung: Pusat Sumber Daya Geologi, 1959. Encyclopaedia.