APA (7th ed.) Citation

Fitzpatrick, G. L., & Modlin, M. J. (1986). Direct-line distances (International ed.). Scarecrow Press.

Chicago Style (17th ed.) Citation

Fitzpatrick, Gary L., and Marilyn J. Modlin. Direct-line Distances. International ed. Metuchen, N.J.: Scarecrow Press, 1986.

MLA (9th ed.) Citation

Fitzpatrick, Gary L., and Marilyn J. Modlin. Direct-line Distances. International ed. Scarecrow Press, 1986.