Obrinsky, Mark. "Frontmatter". Profit Theory and Capitalism, Philadelphia: University of Pennsylvania Press, 1983, pp. i-vi. https://doi.org/10.9783/9780812292565-fm
Obrinsky, M. (1983). Frontmatter. In Profit Theory and Capitalism (pp. i-vi). Philadelphia: University of Pennsylvania Press. https://doi.org/10.9783/9780812292565-fm
Obrinsky, M. 1983. Frontmatter. Profit Theory and Capitalism. Philadelphia: University of Pennsylvania Press, pp. i-vi. https://doi.org/10.9783/9780812292565-fm
Obrinsky, Mark. "Frontmatter" In Profit Theory and Capitalism, i-vi. Philadelphia: University of Pennsylvania Press, 1983. https://doi.org/10.9783/9780812292565-fm
Obrinsky M. Frontmatter. In: Profit Theory and Capitalism. Philadelphia: University of Pennsylvania Press; 1983. p.i-vi. https://doi.org/10.9783/9780812292565-fm