Navarro, M., & Eckel, J. (2016). TOUGH2-GRS - Version 1: User manual. GRS.
Chicago Style (17th ed.) CitationNavarro, Martin, and Jens Eckel. TOUGH2-GRS - Version 1: User Manual. Köln: GRS, 2016.
MLA (9th ed.) CitationNavarro, Martin, and Jens Eckel. TOUGH2-GRS - Version 1: User Manual. GRS, 2016.
Warning: These citations may not always be 100% accurate.