Παραπομπή APA

Freudenberg, K. (1968). Constitution and biosynthesis of lignin. Springer-Verlag.

Παραπομπή Chicago Style

Freudenberg, K. Constitution and Biosynthesis of Lignin. New York: Springer-Verlag, 1968.

Παραπομπή MLA

Freudenberg, K. Constitution and Biosynthesis of Lignin. Springer-Verlag, 1968.