Gaines, B., & Croft, P. (2018). Advanced rock climbing: Mastering sport and trad climbing. Falcon.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रGaines, Bob, और Peter Croft. Advanced Rock Climbing: Mastering Sport and Trad Climbing. Guilford, Connecticut: Falcon, 2018.
एमएलए (8वां संस्करण) प्रशस्ति पत्रGaines, Bob, और Peter Croft. Advanced Rock Climbing: Mastering Sport and Trad Climbing. Falcon, 2018.
चेतावनी: ये उद्धरण हमेशा 100% सटीक नहीं हो सकते हैं.