Gaya APA

Pu, L., Fazel, S, J. (1991). The impact of socioeconomic variables and credit ratings on municipal bond risk premia . United Kingdom: Blackwell Journals.

Gaya MLA

Pu, Liu., Fazel, Seyyed, J.. "The impact of socioeconomic variables and credit ratings on municipal bond risk premia". United Kingdom: Blackwell Journals, 1991. Artikel.