Jager, W., Rost, H., & Taute, P. (1980). Biological growth and spread. Springer-Verlag.
Chicago-čujuhus (17. p.)Jager, Willi, Hermann Rost, juo Petre Taute. Biological Growth and Spread. Berlín: Springer-Verlag, 1980.
MLA-čujuhus (9. p.)Jager, Willi, et al. Biological Growth and Spread. Springer-Verlag, 1980.
Muitte dárkkistit čujuhemiid riektatvuođa, ovdal go geavahat daid iežat deavsttas.