Bibliography and index of geology.

v.33:1; v.33:2; v.33:3; v.33:4; v.33 pt.1 1969; v.33 pt.2 1969; v.33 pt.3 1969; v.33 pt.4 1969; v.34:1; v.34:2; v.34:3; v.34:4; v.34 pt.1 1970; v.34 pt.2 1970; v.34 pt.3 1970; v.34 pt.4 1970; v.34 no.8 1970; v.35:1; v.35:2; v.35:3; v.35:4; v.35 no.9 1971; v.36:1; v.36:2; v.36:3; v.36:4; v.37:1; v.37:2; v.37:3; v.37:4; v.38:1; v.38:2; v.38:3; v.38:4; v.39:1; v.39:2; v.39:3; v.39:4; v.40:1; v.40:2; v.40:3; v.40:4; v.41:1; v.41:2; v.41:3; v.41:4; v.42:1; v.42:2; v.42:3; v.42:4; v.43:1; v.43:2; v.43:3; v.43:4; v.44:1; v.44:2; v.44:3; v.44:4; v.45:1; v.45:2; v.45:3; v.45:4; v.46:1; v.46:2; v.46:3; v.46:4; v.47:1; v.47:2; v.47:3; v.47:4; v.48:1; v.48:2; v.48:3; v.48:4; v.49:1; v.49:2; v.49:3; v.49:4; v.49:5; v.49:6; v.50:1; v.50:2; v.50:3; v.50:4; v.50:5; v.50:6; v.51:1; v.51:2; v.51:3; v.51:4; v.51:5; v.51:6; v.52:1; v.52:2; v.52:3; v.52:4; v.52:5; v.52:6; v.53:1; v.53:2; v.53:3; v.53:4; v.53:5; v.54:1; v.54:2; v.54:3; v.54:4; v.54:5; v.55:1; v.55:2; v.55:3; v.55:4; v.55:5; v.56:1; v.56:2; v.56:3; v.56:4; v.56:5; v.57:1; v.57:2; v.57:3