MSA Academic Advancement Institute & Alferez, M. S. (2005). MSA practice test for civil service exam: Professional and sub-professional levels (Year 2005 ed.). MSA Academic Advancement Institute.
Цитирование в стиле Чикаго (17-е изд.)MSA Academic Advancement Institute и Merle S. Alferez. MSA Practice Test for Civil Service Exam: Professional and Sub-professional Levels. Year 2005 ed. Quezon City: MSA Academic Advancement Institute, 2005.
Цитирование MLA (9-е изд.)MSA Academic Advancement Institute и Merle S. Alferez. MSA Practice Test for Civil Service Exam: Professional and Sub-professional Levels. Year 2005 ed. MSA Academic Advancement Institute, 2005.
Предупреждение: эти цитированмия не могут быть всегда правильны на 100%.