APA (7th ed.) Citation

(2018). Obstacles to innovation and external sourcing of knowledge: Evidence for German and Spanish firms.

Chicago Style (17th ed.) Citation

Obstacles to Innovation and External Sourcing of Knowledge: Evidence for German and Spanish Firms. 2018.

MLA (8th ed.) Citation

Obstacles to Innovation and External Sourcing of Knowledge: Evidence for German and Spanish Firms. 2018.

Warning: These citations may not always be 100% accurate.