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1984.
“A biosystematic study of the relationship of Nama hispidum and Nama stevensii (Hydrophyllaceae).”
29: 367-375.
1984.
“Reconnaissance Report: St. Croix River Study”
: 185 p. in various pagings: maps; 28 cm..
1933.
“Topographic Survey No. 4854 and 4855. Seacliff to Sand Point and Sand Point to Santa Barbara”
1982.
“Dispersal of whitebark pine seeds by clark''s nutcracker: a mutualism hypothesis”
51: 451-467.
1983.
“Nutcrackers and pines: coevolution or coadaptation?”
: 179-223.
1990.
“The evolution of bird-dispersed pines”
4: 185-219.









