Gaya APA

Landis, E, &, S, V. (1979). The Indonesian Coal Resource Program and Coal Labotary Situation . : prepared under the auspices of the agency of international development u.s depar.

Gaya MLA

Landis, E.R., &, Swanson,, V.E.. "The Indonesian Coal Resource Program and Coal Labotary Situation". : prepared under the auspices of the agency of international development u.s depar, 1979. Text.