Leist, N., Kramer, S., & Jonitz, A. (2003). ISTA working sheets on Tetrazolium Testing (1a. ed.). International Seed Testing Association.

Leist, Norbert, Stefanie Kramer, and Andrea Jonitz. ISTA Working Sheets on Tetrazolium Testing. 1a. ed. s.l: International Seed Testing Association, 2003.

Leist, Norbert, et al. ISTA Working Sheets on Tetrazolium Testing. 1a. ed. International Seed Testing Association, 2003.