ENERGY RELATIONS IN CROP PRODUCTION - A PRELIMINARY SURVEY

[1] CLARK C, 1967, ECONOMICS SUBSISTENC

[2] CONKLIN HC, 1957, FAO12 FOR DEV PAP

[3] CULWICK GM, 1950, DIETARY SURVEY AMONG

[4] DANIELS F, 1956, SCI MONTHLY, V82, P247

[5] DUMONT R, 1957, TYPES RURAL ECONOMY

[6] DURNIN JVG, 1967, ENERGY WORK LEISURE

[7] FREEMAN JD, 1955, COL OFFICE RES STUD

[8] GEDDES WR, 1954, COL OFFICE RES STUD

[9] HASWELL MR, 1953, COL OFFICE RES STUD

[10] LEE RB, 1969, 230 NAT MUS CAN B, P73

[1] CLARK C, 1967, ECONOMICS SUBSISTENC

[2] CONKLIN HC, 1957, FAO12 FOR DEV PAP

[3] CULWICK GM, 1950, DIETARY SURVEY AMONG

[4] DANIELS F, 1956, SCI MONTHLY, V82, P247

[5] DUMONT R, 1957, TYPES RURAL ECONOMY

[6] DURNIN JVG, 1967, ENERGY WORK LEISURE

[7] FREEMAN JD, 1955, COL OFFICE RES STUD

[8] GEDDES WR, 1954, COL OFFICE RES STUD

[9] HASWELL MR, 1953, COL OFFICE RES STUD

[10] LEE RB, 1969, 230 NAT MUS CAN B, P73