Treading vegetation on Costa Rican soccer fields
By: by Robert E. Frenkel.
Published: 1970
Language: eng
Number of pages: 63
Subjects: Athletic fields.; Grasses -- Research.
Notes: "Report on field work carried out under ONR contract Nonr 3656 (03), Project NR 388 067, Department of Geography, University of California, Berkeley in 1969."

Bibliography:  leaves 54-56.