Spencer, D. L. (1970). Technology gap in perspective: Strategy of international technology transfer. New York: Spartan Books.
Chicago-стиль цитированияSpencer, Daniel Lloyd. Technology Gap in Perspective: Strategy of International Technology Transfer. New York: Spartan Books, 1970.
MLA-цитированиеSpencer, Daniel Lloyd. Technology Gap in Perspective: Strategy of International Technology Transfer. New York: Spartan Books, 1970.
Предупреждение: эти цитированмия не могут быть всегда правильны на 100%.