Loptson, Peter. "Naturalism". The Edinburgh Companion to Twentieth-Century Philosophies, Edinburgh: Edinburgh University Press, 2007, pp. 116-127. https://doi.org/10.1515/9780748629299-009
Loptson, P. (2007). Naturalism. In The Edinburgh Companion to Twentieth-Century Philosophies (pp. 116-127). Edinburgh: Edinburgh University Press. https://doi.org/10.1515/9780748629299-009
Loptson, P. 2007. Naturalism. The Edinburgh Companion to Twentieth-Century Philosophies. Edinburgh: Edinburgh University Press, pp. 116-127. https://doi.org/10.1515/9780748629299-009
Loptson, Peter. "Naturalism" In The Edinburgh Companion to Twentieth-Century Philosophies, 116-127. Edinburgh: Edinburgh University Press, 2007. https://doi.org/10.1515/9780748629299-009
Loptson P. Naturalism. In: The Edinburgh Companion to Twentieth-Century Philosophies. Edinburgh: Edinburgh University Press; 2007. p.116-127. https://doi.org/10.1515/9780748629299-009