APA (7th ed.) Citation
Gu, W., Weeden, N., Wallace, D., & Singh, S. P. (1993). A DNA marker for ppd, a gene conferring insensitivity to photoperiod in common bean.
Chicago Style (17th ed.) Citation
Gu, WK, N. Weeden, D.H Wallace, and Shree P. Singh. A DNA Marker for Ppd, a Gene Conferring Insensitivity to Photoperiod in Common Bean. 1993.
MLA (9th ed.) Citation
Gu, WK, et al. A DNA Marker for Ppd, a Gene Conferring Insensitivity to Photoperiod in Common Bean. 1993.
Warning: These citations may not always be 100% accurate.