APA引文

Hartmut Albrecht. (1989). Rural development series: Agricultural extension; T1. Eschborn: Technical Cooperation - Federal Republic of Germany.

Trích dẫn kiểu Chicago

Hartmut Albrecht. Rural Development Series: Agricultural Extension; T1. Eschborn: Technical Cooperation - Federal Republic of Germany, 1989.

MLA引文

Hartmut Albrecht. Rural Development Series: Agricultural Extension; T1. Eschborn: Technical Cooperation - Federal Republic of Germany, 1989.

警告：这些引文格式不一定是100％准确.