MLA

Martyn, Thomas. Sketch of a Tour Through Swisserland: with an Accurate Map / [t.m]. Geneva, 1989.

APA

Martyn, T. (1989). Sketch of a tour through Swisserland: with an accurate map / [T.M]. Geneva.

Chicago

Martyn, Thomas Sketch of a Tour Through Swisserland: with an Accurate Map / [T.M]. Geneva, 1989.