A review of the path integral approach to quantum cosmology and its relation
    to canonical quantisation. The initial derivation of the Hartle-Hawking and
    Vilenkin wavefunctions from the Euclidean Einstein-Hilbert action, and later,
    from the Lorentzian path integral using Picard-Lefshets Theory is discussed.
    Path integral quantisation of the Einstein-Cartan action is then employed to
    obtain the wavefunctions for minisuperspace closed FRW universes dominated by
    matter and radiation. These calculations are complimentary to those recently
    carried out by Magueijo using canonical quantisation of the same action.

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