APA引文

PUHL, W., & SCHARF, P. (1997). Intra-articular hyaluronan treatment for osteoarthritis.

Citação norma Chicago

PUHL, W., and P. SCHARF. Intra-articular Hyaluronan Treatment for Osteoarthritis. 1997.

MLA引文

PUHL, W., and P. SCHARF. Intra-articular Hyaluronan Treatment for Osteoarthritis. 1997.

警告：這些引文格式不一定是100％准確.