APA (7th ed.) Citation

Wolf, H. C. (1997). Patterns of intra- and inter-state trade.

Chicago Style (17th ed.) Citation

Wolf, Holger C. Patterns of Intra- and Inter-state Trade. Cambridge, Mass, 1997.

MLA (9th ed.) Citation

Wolf, Holger C. Patterns of Intra- and Inter-state Trade. 1997.