APA引文

NEUMAN, D. (1980). English grammar for proficiency. D.M. Neuman.

芝加哥风格引文

NEUMAN, D.M. English Grammar for Proficiency. Nairobi: D.M. Neuman, 1980.

MLA引文

NEUMAN, D.M. English Grammar for Proficiency. D.M. Neuman, 1980.