Παραπομπή σε μορφή APA (7η εκδ.)

Grube, C. (2009). Measuring the Immeasurable: Valuing Patent Protection of Knowledge-Based Competitive Advantages. Gabler.

Παραπομπή σε μορφή Chicago (17η εκδ.)

Grube, Christian. Measuring the Immeasurable: Valuing Patent Protection of Knowledge-Based Competitive Advantages. Wiesbaden: Gabler, 2009.

Παραπομπή σε μορφή MLA (8th εκδ.)

Grube, Christian. Measuring the Immeasurable: Valuing Patent Protection of Knowledge-Based Competitive Advantages. Gabler, 2009.