APA
"Lill S. e. a., ."Magic of crystals colour & chakra : a book of healing, harmony and wisdom for body, spirit and home using an inspired combination of subtle natural energies and New Age approaches". London: .
Chicago
"Lill Sue et al.", ."Magic of crystals colour & chakra : a book of healing, harmony and wisdom for body, spirit and home using an inspired combination of subtle natural energies and New Age approaches". London: .
Harvard
"Lill S. e. a., ."Magic of crystals colour & chakra : a book of healing, harmony and wisdom for body, spirit and home using an inspired combination of subtle natural energies and New Age approaches". London: .
MLA
"Lill Sue et al.", .London: . .