APA-ийн эшлэл(7 дахь хэвлэлт)

Porcelli, D., Stone, J., & O'Nions, R. (1987). Enhanced 3He 4He ratios and cosmogenic helium in ultramafic xenoliths.

Чикаго-гийн эшлэл (17 дахь хэвлэлт)

Porcelli, DR, J. Stone, ба R. O'Nions. Enhanced 3He 4He Ratios and Cosmogenic Helium in Ultramafic Xenoliths. 1987.

MLA -ийн эшлэл (9 дэх хэвлэлт)

Porcelli, DR, et al. Enhanced 3He 4He Ratios and Cosmogenic Helium in Ultramafic Xenoliths. 1987.