International Development Research Centre (Canada), Daniels, D., & Nestel, B. L. (1993). Defining critical mass: The case in animal research. International Development Research Centre.
Цитирование в стиле Чикаго (17-е изд.)International Development Research Centre (Canada), Douglas Daniels, и Barry L. Nestel. Defining Critical Mass: The Case in Animal Research. Ottawa: International Development Research Centre, 1993.
Цитирование MLA (9-е изд.)International Development Research Centre (Canada), et al. Defining Critical Mass: The Case in Animal Research. International Development Research Centre, 1993.
Предупреждение: эти цитированмия не могут быть всегда правильны на 100%.