APA-ийн эшлэл(7 дахь хэвлэлт)
Trudel, J. D. (1990). High tech with low risk: Venturing safely into the 90s. Regional Services Institute, Eastern Oregon State College.
Чикаго-гийн эшлэл (17 дахь хэвлэлт)
Trudel, John D. High Tech with Low Risk: Venturing Safely into the 90s. LaGrande, OR: Regional Services Institute, Eastern Oregon State College, 1990.
MLA -ийн эшлэл (9 дэх хэвлэлт)
Trudel, John D. High Tech with Low Risk: Venturing Safely into the 90s. Regional Services Institute, Eastern Oregon State College, 1990.
Анхааруулга: Эдгээр ишлэлүүд үргэлж 100% үнэн зөв биш байж магадгүй.