Rather than repeating "This page intentionally left blank," whoever wrote the "Lunar-Mars Life Support Test Project: Phase III Final Report" got creative:
The relative blankness of this page in no way diminishes its usefulness in the report.
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With these words, this page is no longer blank but is complete.
This sentence lets you know this page was not a mistake.
This almost blank page was intentional.
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Despite these words, this page is blank.
Without this mostly blank page, the following text would be on the wrong side of the paper.
The full report is CTSD-ADV-341, Engineering Directorate, Crew and Thermal Systems Division, Feb 23, 2000, NASA, Johnson Space Center, and is available from the web at http://advlifesupport.jsc.nasa.gov/Reports/Phase3/01_LMLSTP.html