Discurso segundo acerca de la validez de los actuales grados académicos para obtener beneficios eclesiásticos /

Mode of access: Internet.

Fractional factorial experiment designs for factors at two levels.

Bibliography: p. 4.

The factorial analysis of human ability.

Errata slip inserted.

Recovery of coliforms by the MPN and MF techniques using a 2n - factorial experimental design /

Bibliography: p. 37-39.