The logo was principally developed by Tom Geismar of Chermayeff & Geismar.

The commune is principally developed along the coast, following the two principal coastal roads: Statale 16 Road and the Adriatic Railway line.

The Perth Central School was developed principally between 1877 and 1914.

The Schrödinger equation was developed principally from the De Broglie hypothesis, a wave equation that would describe particles, and can be constructed in the following way.

While the breed's genetic roots are ultimately in Thailand, the breed was formally developed principally in the US.

This naming has been developed principally for coordination compounds although it can be more widely applied.

These air-cooled engines were developed principally as motorcycle units and therefore had no reverse gear.

Situational ethics, or situation ethics, is a Christian ethical theory that was principally developed in the 1960s by the then Episcopal priest Joseph Fletcher.

Services and information are developed and used principally by or on behalf of those who generate physical wealth.

Wright was principally developed by Robert Allen and David Garlan.