YES VIRGINIA, IT REALLY IS THAT OLD - REPLY

[1] Adovasio J.M., 1975, PENNSYLVANIA ARCHAEO, V45, P1

[2] MEADOWCROFT ROCKSHELTER, 1977 - OVERVIEW [J]. AMERICAN ANTIQUITY, 1978, 43 (04) : 632 - 651

[3] ADOVASIO JM, 1979, N AM ARCHAEOLOGIST, V1

[4] ADOVASIO JM, 1979, N AM ARCHAEOL, V1, P3

[5] ADOVASIO JM, 1977, ANN NEW YORK ACADEMY, V228, P137

[6] ADOVASIO JM, 1977, PENNSYLVANIA ARCHAEO, V47, P1

[7] ADOVASIO JM, 1978, EARLY MAN AM CIRCUM, P140

[8] BRAUN EL, 1950, DECIDUOUS FORESTS EA

[9] CLARKE FW, 1924, 770 US GEOL SURV B

[10] GILLESPIE W H, 1968, Castanea, V33, P267

[1] Adovasio J.M., 1975, PENNSYLVANIA ARCHAEO, V45, P1

[2] MEADOWCROFT ROCKSHELTER, 1977 - OVERVIEW [J]. AMERICAN ANTIQUITY, 1978, 43 (04) : 632 - 651

[3] ADOVASIO JM, 1979, N AM ARCHAEOLOGIST, V1

[4] ADOVASIO JM, 1979, N AM ARCHAEOL, V1, P3

[5] ADOVASIO JM, 1977, ANN NEW YORK ACADEMY, V228, P137

[6] ADOVASIO JM, 1977, PENNSYLVANIA ARCHAEO, V47, P1

[7] ADOVASIO JM, 1978, EARLY MAN AM CIRCUM, P140

[8] BRAUN EL, 1950, DECIDUOUS FORESTS EA

[9] CLARKE FW, 1924, 770 US GEOL SURV B

[10] GILLESPIE W H, 1968, Castanea, V33, P267