共 50 条
- [21] IMPACT OF DEVELOPMENT CENTERS ON NATIONAL-PARK LANDSCAPES - VIEWS OF SENIOR NATIONAL-PARK SERVICE OFFICIALS [J]. LANDSCAPE PLANNING, 1977, 4 (04): : 349 - 358
- [25] GREENWAYS AND THE US NATIONAL-PARK SYSTEM [J]. LANDSCAPE AND URBAN PLANNING, 1995, 33 (1-3) : 17 - 25
- [26] CREATING A NATIONAL-PARK, 1910 TO 1926 [J]. JOURNAL OF SOUTHERN AFRICAN STUDIES, 1989, 15 (02) : 188 - 216
- [28] USING A NATIONAL-PARK FOR A FIELD TRIP [J]. AMERICAN BIOLOGY TEACHER, 1977, 39 (02): : 98 - 101
- [30] SPRINGTIME COMES TO YELLOWSTONE NATIONAL-PARK [J]. NATIONAL GEOGRAPHIC, 1956, 110 (06) : 761 - 779