Technical Reports may be considered to be a special type of book. These are publications from an institution or project, and often contain primary data and maps which do not appear elsewhere. They may be difficult to obtain, but if they are the only source of information, you should definitely use and cite them.
They are not peer-reviewed; the quality control was only as good as the project.
Many Universities and Research institutes publish this kind of reports online to encourage feedback from fellow scientists and to promote their research. Also open access publishing policies add a lot to the availability of technical reports.
Examples of Technical Reports
- Center for Advanced Spatial Technologies (CAST). 1998. ARGAP final report: State-wide biodiversity mapping for Arkansas. Report, Center For Advanced Spatial Technologies (CAST), Fayetteville, AR.
- Anonymous. 1985. Soils and soil conditions, Kali Konto upper watershed, East Java. Project Report ATA 206, Universitas Brawijaya (Malang), Agricultural University (Wageningen)
- International Water Management Institute (IWMI) : Research Reports http://www.iwmi.cgiar.org/publications/iwmi-research-reports/