Obscenity (Law) -- Pennsylvania -- Philadelphia : A full account of the trial of Simon M. Landis, M.D., for uttering and publishing a book entitled "Secrets of generation" / phonographically reported by C.R. Morgan
Observació (Mètode d'ensenyament) : Abriendo las puertas del aula : transformación de las prácticas docentes / Jorge Manzi y María Rosa García, editores
2016
1
Observació (Psicologia) : Abriendo las puertas del aula : transformación de las prácticas docentes / Jorge Manzi y María Rosa García, editores
Here are entered works on military aerial observation in general, including aerial reconnaissance and surveillance, monitoring of friendly ground forces, observation of friendly artillery fire, etc. Works limited to the aerial examination of enemy territory to obtain military information concerning installations, movements, resources, strength, etc., are entered under Aerial reconnaissance
1
Observation Animals Africa : Tomorrow, today. Series 1, Episode 51 / by Merran Williams and Andrew Thomson
2009
1
Observation (Éducation) : Observational research in U.S. classrooms : new approaches for understanding cultural and linguistic diversity / edited by Hersh C. Waxman, Roland G. Tharp, R. Soleste Hilberg
Observation (Educational method) -- Methodology. : A descriptive instrument to investigate teacher references to the task environment during the facilitation of perceptual-motor skills / by Mitchell E. Levison