Documented Chromosome Numbers 1990: 1. Miscellaneous North American Vascular Plants, Bruce D. Parfitt, Donald J. Pinkava, Debbie Rickel, Dan Fillipi, Beth Eggers, David J. Keil
David J. Keil

Chromosome Studies in Asteraceae from the United States, Mexico, the West Indies, and South America, David J. Keil, Melissa A. Luckow, Donald J. Pinkava
David J. Keil

Chromosome Counts of Compositae from the United States and Mexico, Donald J. Pinkava, David J. Keil
David J. Keil

Documented Chromosome Numbers 1990: 1. Miscellaneous North American Vascular Plants, Bruce D. Parfitt, Donald J. Pinkava, Debbie Rickel, Dan Fillipi, Beth Eggers, David J. Keil
Biological Sciences

Chromosome Studies in Asteraceae from the United States, Mexico, the West Indies, and South America, David J. Keil, Melissa A. Luckow, Donald J. Pinkava
Biological Sciences

Chromosome Counts of Compositae from the United States and Mexico, Donald J. Pinkava, David J. Keil
Biological Sciences