National Conference of the Society of Professional Engineers of Papua New Guinea ( 1st : 1977 : Lae) & Society of Professional Engineers of Papua New Guinea. (1977). Society of Professional Engineers of Papua New Guinea First National Conference, May 1977: Reprints of papers. The Society.
Цитирование в стиле Чикаго (17-е изд.)National Conference of the Society of Professional Engineers of Papua New Guinea ( 1st : 1977 : Lae) и Society of Professional Engineers of Papua New Guinea. Society of Professional Engineers of Papua New Guinea First National Conference, May 1977: Reprints of Papers. [Lae: The Society, 1977.
Цитирование MLA (9-е изд.)National Conference of the Society of Professional Engineers of Papua New Guinea ( 1st : 1977 : Lae) и Society of Professional Engineers of Papua New Guinea. Society of Professional Engineers of Papua New Guinea First National Conference, May 1977: Reprints of Papers. The Society, 1977.