Cita APA (7a ed.)

Lyytikäinen, H. E. (1986). Stereological criteria for primary topographic contours. [s.n.].

Cita Chicago Style (17a ed.)

Lyytikäinen, Hilpas E. Stereological Criteria for Primary Topographic Contours. Helsinki: [s.n.], 1986.

Cita MLA (8a ed.)

Lyytikäinen, Hilpas E. Stereological Criteria for Primary Topographic Contours. [s.n.], 1986.