Mach K.A. and others & K.A. Mach, W. M. M. (1978). College typewriting, a mastery approach: Beginning. Science Research Associates.
Цитирование в стиле Чикаго (17-е изд.)Mach K.A. and others и W. M. Mitchell K.A. Mach. College Typewriting, a Mastery Approach: Beginning. Chicago: Science Research Associates, 1978.
Цитирование MLA (8-е изд.)Mach K.A. and others и W. M. Mitchell K.A. Mach. College Typewriting, a Mastery Approach: Beginning. Science Research Associates, 1978.
Предупреждение: эти цитированмия не могут быть всегда правильны на 100%.