Gaya APA

[et.al], R, B. (1990). Directory of special libraries and information sources in Indonesia 1990 = Direktori perpustakaan khusus dan sumber Informasi di Indonesia . Jakarta: Centre for Scientific Documentation and Information Indonesian Institute of Sciences.

Gaya MLA

[et.al], R., Boediardjo. "Directory of special libraries and information sources in Indonesia 1990 = Direktori perpustakaan khusus dan sumber Informasi di Indonesia". Jakarta: Centre for Scientific Documentation and Information Indonesian Institute of Sciences, 1990. Text.