Structure and dynamics of the Earth
I like to treat the global motions of the Earth, such as rotation and normal modes. 

Hinderer, J . and D. J. Crossley, 2001, Time variations in gravity and inferences on the Earth’s structure and dynamics, Surveys in Geophysics, 21, 1-45. 

Crossley, D.,  (editor) 1997. Earth's Deep Interior, Gordon and Breach, 455 pp.

Crossley, D. J. 1993. The Earth's Core, Geoscience Canada, 20, pp 100-113

Hinderer, J. and D. J. Crossley, 1993. Core dynamics and surface gravity changes, AGU Geophysical Monograph - Dynamics of Earth's Deep Interior and Earth Rotation, 72, 1-16;

Todoeschuck, J. and Crossley, D. J., 1988. Non-linear anelasticity and the free oscillations of the Earth, Geophys. J; Int;, 95, 323-326.

Rochester, M. G. and Crossley, D. J., 1986. Earth's third ocean, the liquid core, EOS, 68, 491-492.

Crossley, D. J., 1975. The free oscillation equations at the centre of the Earth, Geophys. J. Roy. Astr. Soc., 41, 153-163.