Παραπομπή σε μορφή APA (7η εκδ.)

ebrary, Inc. (2008). Study guide for the professional licensure of mining and mineral processing engineers: Principles and practice of engineering (P.E.) examination (7th ed.). Society for Mining Metallurgy and Exploration.

Παραπομπή σε μορφή Chicago (17η εκδ.)

ebrary, Inc. Study Guide for the Professional Licensure of Mining and Mineral Processing Engineers: Principles and Practice of Engineering (P.E.) Examination. 7th ed. Littleton: Society for Mining Metallurgy and Exploration, 2008.

Παραπομπή σε μορφή MLA (9th εκδ.)

ebrary, Inc. Study Guide for the Professional Licensure of Mining and Mineral Processing Engineers: Principles and Practice of Engineering (P.E.) Examination. 7th ed. Society for Mining Metallurgy and Exploration, 2008.