TY - BOOK AU - ADAMS George F TI - Planation surface: Peneplains, pediplains, and etchplains part 2 T2 - Benchmark papers in geology: 22 SN - 0470007869 U1 - H3, L5 PY - 1975/// CY - USA PB - Pennsylvania Halsted Press N1 - Bibliography chapterwise ER -